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key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | what are mitochondria often called and what are they responsible for ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | what modifications should be done to the mitochondria to perform chloroplast function ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | cristae were once thought to be broad , wavy folds , but as sal discusses in his mitochondria video , they 're now understood to be more like long caverns. $ ^1 $ here is a 3d reconstruction of a slice cut from a mitochondrion : the space between the membranes is called the intermembrane space , and the compartment enc... | where does the glucose in matrix come from ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | cristae were once thought to be broad , wavy folds , but as sal discusses in his mitochondria video , they 're now understood to be more like long caverns. $ ^1 $ here is a 3d reconstruction of a slice cut from a mitochondrion : the space between the membranes is called the intermembrane space , and the compartment enc... | i know ribosomes make proteins , but do they also associate with lipids in any way ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | why are the peroxisomes and mitochondria close to one another ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | why is mitochondria called atp factory ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | that 's true , but it turns out to be very useful for cellular respiration , allowing reactions to be kept separate and different concentrations of molecules to be maintained in different `` rooms . '' although mitochondria are found in most human cell types ( as well as most cell types in other animals and plants ) , ... | i understand hoe the cell is dependent on are mitochondria and chloroplast , but how are they dependent on the cell ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | how is cholesterol synthesized in the mitochondria ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | in photosynthesis , light energy is collected and used to build sugars from carbon dioxide . the sugars produced in photosynthesis may be used by the plant cell , or may be consumed by animals that eat the plant , such as humans . the energy contained in these sugars is harvested through a process called cellular respi... | so hypothetically , if humans were made of plant cells , would we be capable of photosynthesis ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | cristae were once thought to be broad , wavy folds , but as sal discusses in his mitochondria video , they 're now understood to be more like long caverns. $ ^1 $ here is a 3d reconstruction of a slice cut from a mitochondrion : the space between the membranes is called the intermembrane space , and the compartment enc... | how much did mitochondrial dna evolve , for example between a protist and a human , in comparison to the nucleus dna ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | cristae were once thought to be broad , wavy folds , but as sal discusses in his mitochondria video , they 're now understood to be more like long caverns. $ ^1 $ here is a 3d reconstruction of a slice cut from a mitochondrion : the space between the membranes is called the intermembrane space , and the compartment enc... | why can the phenotype of the nucleus be a whole organism including many cells , while the phenotype of the mitochondrial dna remains just the mitochondrion ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | symbiosis is a relationship in which organisms from two separate species live in a close , dependent relationship . endosymbiosis ( endo- = “ within ” ) is a specific type of symbiosis where one organism lives inside the other . bacteria , mitochondria , and chloroplasts are similar in size . bacteria also have dna and... | why is the nucleus of a monocellular organism more similar to that of a complex animal than to a mitochondrion ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | symbiosis is a relationship in which organisms from two separate species live in a close , dependent relationship . endosymbiosis ( endo- = “ within ” ) is a specific type of symbiosis where one organism lives inside the other . bacteria , mitochondria , and chloroplasts are similar in size . | if the symbiosis was very `` unbalanced '' , was that because the body of one component was the environment of the other ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | endosymbiosis ( endo- = “ within ” ) is a specific type of symbiosis where one organism lives inside the other . bacteria , mitochondria , and chloroplasts are similar in size . bacteria also have dna and ribosomes similar to those of mitochondria and chloroplasts. $ ^4 $ based on this and other evidence , scientists t... | how are mitochondria and chloroplast similar in reproductive processes ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . | can you please tell what is an f1 particles ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | cristae were once thought to be broad , wavy folds , but as sal discusses in his mitochondria video , they 're now understood to be more like long caverns. $ ^1 $ here is a 3d reconstruction of a slice cut from a mitochondrion : the space between the membranes is called the intermembrane space , and the compartment enc... | mitochondrial depletion syndrome - do you think there will ever be a cure ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | for instance , muscle cells typically have high energy needs and large numbers of mitochondria , while red blood cells , which are highly specialized for oxygen transport , have no mitochondria at all. $ ^3 $ where did these organelles come from ? both mitochondria and chloroplasts contain their own dna and ribosomes .... | so far no one has figured out how to get dna into human mitochondria ... ... ..why is it so hard to get the dna into a human one ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | they capture light energy and store it as fuel molecules in the plant 's tissues . mitochondria are found inside of your cells , along with the cells of plants . they convert the energy stored in molecules from the broccoli ( or other fuel molecules ) into a form the cell can use . | do eukaryotic organisms or cells which primarily rely on anaerobic metabolism contain mitochondria ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( singular , mitochondrion ) are often called the powerhouses or energy factories of the cell . their job is to make a steady supply of adenosine triphosphate ( atp ) , the cell ’ s m... | i wonder if ascaris contains any mitochondria given that the organelle is used for aerobic respiration ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | strong evidence points to endosymbiosis as the answer to the puzzle . symbiosis is a relationship in which organisms from two separate species live in a close , dependent relationship . endosymbiosis ( endo- = “ within ” ) is a specific type of symbiosis where one organism lives inside the other . | can chloroplast have a relationship of symbiosis with human cells ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bacteria that were engulfed by larger cells ( the endosymbiont theory ) . introduction you may know that your body is made up of cells ( trillions and trillions of them ) . | can it be engulfed by human cells ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | that 's true , but it turns out to be very useful for cellular respiration , allowing reactions to be kept separate and different concentrations of molecules to be maintained in different `` rooms . '' although mitochondria are found in most human cell types ( as well as most cell types in other animals and plants ) , ... | 1. could a cell be somehow `` encouraged '' to engulf another organism for example a chloroplast ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | let 's take a closer look at these two very important organelles . chloroplasts chloroplasts are found only in plants and photosynthetic algae . ( humans and other animals do not have chloroplasts . ) | do you think the photosynthetic bacterium engulfed by the mitochondrion already contained chlorophyll ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | thylakoid discs are hollow , and the space inside a disc is called the thylakoid space or lumen , while the fluid-filled space surrounding the thylakoids is called the stroma . you can learn more about chloroplasts , chlorophyll , and photosynthesis in the photosynthesis topic section . mitochondria mitochondria ( sing... | so what are the human benefits of consuming chlorophyll ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | if you passed through the two layers of membrane and reached the space in the center , you ’ d find that it contained membrane discs known as thylakoids , arranged in interconnected stacks called grana ( singular , granum ) . the membrane of a thylakoid disc contains light-harvesting complexes that include chlorophyll ... | if the thylakoid membrane is what contains chlorophyll how does that make plants green ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | chloroplasts are disc-shaped organelles found in the cytosol of a cell . they have outer and inner membranes with an intermembrane space between them . if you passed through the two layers of membrane and reached the space in the center , you ’ d find that it contained membrane discs known as thylakoids , arranged in i... | is n't the thylakoid membrane completely surrounded and covered by the inner and outer membranes of the chloroplast ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | chloroplasts are disc-shaped organelles found in the cytosol of a cell . they have outer and inner membranes with an intermembrane space between them . if you passed through the two layers of membrane and reached the space in the center , you ’ d find that it contained membrane discs known as thylakoids , arranged in i... | would n't the pigment be covered up by these membranes making it not visible ? |
key points : mitochondria are the `` powerhouses '' of the cell , breaking down fuel molecules and capturing energy in cellular respiration . chloroplasts are found in plants and algae . they 're responsible for capturing light energy to make sugars in photosynthesis . mitochondria and chloroplasts likely began as bact... | that 's true , but it turns out to be very useful for cellular respiration , allowing reactions to be kept separate and different concentrations of molecules to be maintained in different `` rooms . '' although mitochondria are found in most human cell types ( as well as most cell types in other animals and plants ) , ... | how many mitochondria can a human cell have ? |
the six basic steps in the production of stained glass 1 . cartoon an artist would initially make a sketch of the overall composition of a window . then full-sized drawings for the whole window or for different sections ( panels ) of the window were made . these full-sized drawings are called cartoons . generally , the... | what is vitreous paint ? glass painters used a special paint made of glass particles suspended in a liquid binder—vitreous means `` consisting of glass '' —to paint the side of glass that would face the interior of the building . during firing , the glass particles in the paint melted and merged with the glass surface... | how would one get the various colours in the glass ? |
the six basic steps in the production of stained glass 1 . cartoon an artist would initially make a sketch of the overall composition of a window . then full-sized drawings for the whole window or for different sections ( panels ) of the window were made . these full-sized drawings are called cartoons . generally , the... | painting after the glass pieces were cut and shaped , they were painted with a pigment formed by mixing iron oxide and ground copper with powdered glass . wine , urine , or vinegar was added to help apply the pigment to the glass . this vitreous paint ranged from brown to gray to black . | what property do urine , wine , and vinegar share that makes them a good binder for the vitreous besides mild acidity ? |
the six basic steps in the production of stained glass 1 . cartoon an artist would initially make a sketch of the overall composition of a window . then full-sized drawings for the whole window or for different sections ( panels ) of the window were made . these full-sized drawings are called cartoons . generally , the... | 2 . cutting different colors of glass were chosen for separate parts of the design , and the outline of each piece was then painted on the surface with white lime wash . pieces were cut into rough shapes using a dividing iron , the heated tip of which was applied to the surface of the glass , causing it to break . | what was a white washed board ? |
the six basic steps in the production of stained glass 1 . cartoon an artist would initially make a sketch of the overall composition of a window . then full-sized drawings for the whole window or for different sections ( panels ) of the window were made . these full-sized drawings are called cartoons . generally , the... | cutting different colors of glass were chosen for separate parts of the design , and the outline of each piece was then painted on the surface with white lime wash . pieces were cut into rough shapes using a dividing iron , the heated tip of which was applied to the surface of the glass , causing it to break . the piec... | also , what sort of metal is a grozing iron and dividing iron made from ( i would assume iron ) ? |
the six basic steps in the production of stained glass 1 . cartoon an artist would initially make a sketch of the overall composition of a window . then full-sized drawings for the whole window or for different sections ( panels ) of the window were made . these full-sized drawings are called cartoons . generally , the... | what is vitreous paint ? glass painters used a special paint made of glass particles suspended in a liquid binder—vitreous means `` consisting of glass '' —to paint the side of glass that would face the interior of the building . during firing , the glass particles in the paint melted and merged with the glass surface... | when was glass first made ? |
overview president franklin roosevelt ’ s executive order 9066 resulted in the relocation of 112,000 japanese americans living on the west coast into internment camps during the second world war . japanese americans sold their businesses and houses for a fraction of their value before being sent to the camps . in the p... | these concerns were driven by public hysteria grounded in racism and false reports of sabotage and collaboration with the enemy . under the executive order , some 112,000 japanese americans—79,000 of whom were american citizens—were removed from the west coast and placed into ten internment camps located in remote area... | how come the internment situation seems to be placed in history as more of a blotch on the american people of the time , and does n't seem to stain fdr 's strong reputation in our history books quite as badly as i think that it should ? |
overview president franklin roosevelt ’ s executive order 9066 resulted in the relocation of 112,000 japanese americans living on the west coast into internment camps during the second world war . japanese americans sold their businesses and houses for a fraction of their value before being sent to the camps . in the p... | in so doing , they lost much of what they had accrued in the course of their lives. $ ^1 $ the camps—like the one at manzanar , california , located at the foot of the sierra nevada mountains—were surrounded by fences , barbed wire , guard towers , searchlights and machine guns . families incarcerated in the camps live... | how was life in the camps ? |
a spectacular space in vicenza , a town near venice , a unique renaissance theater has miraculously survived for over four centuries . a hidden gem built inside an abandoned fortress and prison , teatro olimpico gives form to the period ’ s knowledge of classical roman architecture and puts into practice contemporary a... | after the olimpico the result of palladio and scamozzi ’ s antiquarian knowledge and artistic innovation is a splendid and alluring space . yet despite its enthralling qualities , the teatro olimpico quickly fell into disuse after its first production . its influence is palpable , nonetheless , in two northern italian ... | why was teatro olimpico named that ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | earliest known writing in america the head above is made from a dark green stone called serpentinite and would have been worked by skilled craftspeople using hand tools . on either side of the mouth ( detail above ) there are two olmec glyphs ( picture signs ) . olmec glyphs are the earliest known writing in america . | on the mouth of the last picture , why is there no teeth , and whats that under the gum ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | earliest known writing in america the head above is made from a dark green stone called serpentinite and would have been worked by skilled craftspeople using hand tools . on either side of the mouth ( detail above ) there are two olmec glyphs ( picture signs ) . olmec glyphs are the earliest known writing in america . ... | were the `` glyphs '' scratched on to the surface at a later date ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | r. diehl , the olmecs : america 's first civilization ( london , 2004 ) . m. miller , and k. taube , the gods and symbols of ancient mexico and the maya : an illustrated dictionary of mesoamerican religion ( london , 1993 ) . c. pool , olmec archaeology and early mesoamerica ( cambridge , 2007 ) . | what do the symbols mean and how did they figure out the name of it ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | earliest known writing in america the head above is made from a dark green stone called serpentinite and would have been worked by skilled craftspeople using hand tools . on either side of the mouth ( detail above ) there are two olmec glyphs ( picture signs ) . olmec glyphs are the earliest known writing in america . ... | were the `` glyphs '' scratched on to the surface at a later date ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . | is the cleft in the middle/top of the mask symbolic ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . | why are all the mask face things pollished ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | the olmec art style is found on objects as far afield as the valley of mexico to the north and the pacific coast of chiapas to the south . this suggests a widely-shared set of beliefs that was to have a profound influence on many later mesoamerican stylistic traditions . suggested readings : m. coe , et al. , the olmec... | since there are so many large stone olmac heads why is this mask the only artifact posted ... ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | earliest known writing in america the head above is made from a dark green stone called serpentinite and would have been worked by skilled craftspeople using hand tools . on either side of the mouth ( detail above ) there are two olmec glyphs ( picture signs ) . olmec glyphs are the earliest known writing in america . ... | what were olmec glyphs like ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | the olmec art style is found on objects as far afield as the valley of mexico to the north and the pacific coast of chiapas to the south . this suggests a widely-shared set of beliefs that was to have a profound influence on many later mesoamerican stylistic traditions . suggested readings : m. coe , et al. , the olmec... | the author coments at the end that there were shared beliefs in mesoamerica why leave this concept hanging ? |
this mask was probably worn around the neck as a pendant and may have given the wearer a new identity , perhaps that of an ancestor or a god . it was made by the olmecs , the earliest known settled civilization of central america . the olmec the olmecs lived in the low-lying gulf coast area of what is now mexico in abo... | the olmecs worked mainly in stone and particularly favored jade , or greenstone , which they believed had distinctive properties linked with fertility and procreation . these sought-after materials were brought into the region through long distance trade networks . earliest known writing in america the head above is ma... | why not discuss the custom of culture absorption characteristic of conquering nations in the region ? |
mean absolute deviation the mean absolute deviation of a dataset is the average distance between each data point and the mean . it gives us an idea about the variability in a dataset . here 's how to calculate the mean absolute deviation . step 1 : calculate the mean . step 2 : calculate how far away each data point is... | $ 6+1+1+1+2+5=16 $ step 4 : divide the sum by the number of data points . $ \text { mad } =\dfrac { 16 } { 6 } \approx2.67 $ likes on average , each picture was about $ 3 $ likes away from the mean . want to learn more about mean absolute deviation ? | hi , what 's the difference between mad and the variance ? |
mean absolute deviation the mean absolute deviation of a dataset is the average distance between each data point and the mean . it gives us an idea about the variability in a dataset . here 's how to calculate the mean absolute deviation . step 1 : calculate the mean . step 2 : calculate how far away each data point is... | mean absolute deviation the mean absolute deviation of a dataset is the average distance between each data point and the mean . it gives us an idea about the variability in a dataset . | is mad of a sample a good statistic for estimating the mean absolute deviation of a population and why ? |
mean absolute deviation the mean absolute deviation of a dataset is the average distance between each data point and the mean . it gives us an idea about the variability in a dataset . here 's how to calculate the mean absolute deviation . step 1 : calculate the mean . step 2 : calculate how far away each data point is... | these are called absolute deviations . step 3 : add those deviations together . step 4 : divide the sum by the number of data points . | like if the question , forecast is 11 , actual is 8 , as the formula is actual-forecast , should the work do in 8-11=-3 or 8-11=3/11-8=3 ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the $ \blued { \text { imaginary } } $ part of the number , or $ \blued b $ , is always the real number coefficient of the pure imaginary number . the complex plane just like we can use the number line to visualize the set of real numbers , we can use the complex plane to visualize the set of complex numbers . the comp... | are complex numbers included in real numbers ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the complex plane consists of two number lines that intersect in a right angle at the point $ ( 0,0 ) $ . the horizontal number line ( what we know as the $ x $ -axis on a cartesian plane ) is the real axis . the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . | can we use the why axis instead of the x axis as the real number plane ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex number every complex number can be represented by a point in the complex plane . for example , consider the number $ 3-5i $ . | why are we using the complex plane ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | what are the purposes and advantages ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imaginary unit and $ \greend { a } $ and $ \blued { b } $ are real numbers . the $ \greend { \text { real } } $ part of the number , or $ \greend a $ , is always the real number that is being added to the pure i... | when we do n't know to what number we have to carry out the operation how can we obtain a definite value ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the complex plane consists of two number lines that intersect in a right angle at the point $ ( 0,0 ) $ . the horizontal number line ( what we know as the $ x $ -axis on a cartesian plane ) is the real axis . the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex nu... | why is real axis on x axis and imaginary axis on y axis , why ca n't imaginary axis be on x axis ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | $ ( $ if you take the diagonal of a unit square and place one end on $ 0 $ , the other end corresponds to the number $ \sqrt { 2 } $ . $ ) $ likewise , every complex number does indeed exist because it corresponds to an exact location on the complex plane ! perhaps by being able to visualize these numbers , we can unde... | i find it fascinating : ) so , what is the deal of using complex numbers over coordinates ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | there is no difference in saying ( x=1 , y=2 ) and ( 1+2i ) , right ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | $ ( $ if you take the diagonal of a unit square and place one end on $ 0 $ , the other end corresponds to the number $ \sqrt { 2 } $ . $ ) $ likewise , every complex number does indeed exist because it corresponds to an exact location on the complex plane ! perhaps by being able to visualize these numbers , we can unde... | why not create numbers that can have the third , or even fourth , or n-th dimension ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the complex plane consists of two number lines that intersect in a right angle at the point $ ( 0,0 ) $ . the horizontal number line ( what we know as the $ x $ -axis on a cartesian plane ) is the real axis . the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex nu... | could we superimpose these two , so that we have not only the x and y axis but an additional third , imaginary , axis as well ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex number every complex number can be represented by a point in the complex plane . for example , consider the number $ 3-5i $ . | or maybe i should n't be thinking of the complex plane as a two dimensional plane ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the location of this number on the complex plane is the point that corresponds to $ \greend { 3 } $ on the real axis and $ \blued { -5 } $ on the imaginary axis . so the number $ \greend { 3 } + ( \blued { -5 } ) i $ is associated with the point $ ( \greend { 3 } , \blued { -5 } ) $ . in general , the complex number $ ... | is it possible to plot a 3 dimensional graph , like y=3x+2i+4 ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imaginary unit and $ \greend { a } $ and $ \blued { b } $ are real numbers . the $ \greend { \text { real } } $ part of the number , or $ \greend a $ , is always the real number that is being added to the pure i... | the i part always goes on the vertical , and the r always goes on the horizontal , right ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the location of this number on the complex plane is the point that corresponds to $ \greend { 3 } $ on the real axis and $ \blued { -5 } $ on the imaginary axis . so the number $ \greend { 3 } + ( \blued { -5 } ) i $ is associated with the point $ ( \greend { 3 } , \blued { -5 } ) $ . in general , the complex number $ ... | how to plot graph of z^3 ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | perhaps by being able to visualize these numbers , we can understand that calling these numbers `` imaginary '' was an unfortunate misnomer . complex numbers exist and are very much a part of mathematics . the real number line is simply the real axis on the complex plane , but there is so much beyond that single line ! | is there a reason the real part does n't have to be mentioned first , like points on the xy coordinate plane ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex number every complex number can be represented by a point in the complex plane . for example , consider the number $ 3-5i $ . | what is the baisic concept of complex number ? |
the imaginary unit , or $ i $ , is the number with the following equivalent properties : $ i^2=-1 $ $ \sqrt { -1 } =i $ a pure imaginary number is any real multiple of $ i $ , like $ 3i $ or $ i\sqrt 5 $ . a complex number is any number that can be written as $ \greend { a } +\blued { b } i $ , where $ i $ is the imagi... | the horizontal number line ( what we know as the $ x $ -axis on a cartesian plane ) is the real axis . the vertical number line ( the $ y $ -axis on a cartesian plane ) is the imaginary axis . plotting a complex number every complex number can be represented by a point in the complex plane . | why is the y-axis on the complex plain called `` the imaginary axis '' ? |
appropriation—the strategy of selective borrowing—is a common theme in the history of modern art . since the late nineteenth century artists have both copied and imitated the work of other artists . consider , for example , the work of vincent van gogh , who copied the format and the compositions of japanese color wood... | this concern with “ pictures ” expanded beyond those five original artists to include many others working in this period as well . in a retrospective exhibition at the metropolitan museum of art in 2009 the work of artists barbara kruger , louise lawler , richard prince , david salle , cindy sherman , and michael zwack... | how is copying another persons work entirely and renaming it art , exactly ? |
we derive the natural response of the inductor-capacitor , $ \text { lc } $ , circuit . this is where sine waves are born . background this article walks you step-by-step through the solution to a $ 2 $ nd-order differential equation . i do n't assume you have previous experience with this type of equation . sal has vi... | ( the letter $ i $ is already taken for current . ) introduction first-order systems up to now we 've looked at first-order circuits , $ \underline { \text { rc } } $ and $ \underline { \text { rl } } $ , that have one energy-storage element , $ \text { c } $ or $ \text { l } $ . the natural response of first-order cir... | under first order systems in the introduction , would it be right to call the natural response of a first order an exponential decay in terms of the graph ? |
we derive the natural response of the inductor-capacitor , $ \text { lc } $ , circuit . this is where sine waves are born . background this article walks you step-by-step through the solution to a $ 2 $ nd-order differential equation . i do n't assume you have previous experience with this type of equation . sal has vi... | we 're about to take the square root of a negative number . we are about to generate an imaginary number . $ s $ has two possible values : $ s_1 = +j\ , \sqrt { \dfrac { 1 } { \text { lc } } } $ $ s_2 = -j\ , \sqrt { \dfrac { 1 } { \text { lc } } } $ electrical engineers use the letter $ j $ to indicate the imaginary u... | how did the imaginary j in a2 disappear after we solved for it ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | the fibrin forms threads that reinforce the platelet plug , making a clot that prevents further loss of blood . white blood cells white blood cells , also called leukocytes , are much less common than red blood cells and make up less than $ 1\ % $ of the of the cells in blood . their role is also very different from th... | if there is bacteria in our blood and there is only 1 % of white blood cells , would n't that take a long time to dispose of the bacteria ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | lipids , such as cholesterol , are also carried in plasma , but must travel with escort proteins because they don ’ t dissolve in water . red blood cells red blood cells , or erythrocytes , are specialized cells that circulate through the body and deliver oxygen to tissues . in humans , red blood cells are small and bi... | are erythrocytes ( after maturation ) still considered cells of the body ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | this negative feedback loop ensures that the number of red blood cells in the body remains relatively constant over time . platelets and clotting platelets , also called thrombocytes , are cell fragments involved in blood clotting . they are produced when large cells called megakaryocytes break into pieces , each one m... | what is the amount of time platelets use to clot where a person injured his or herself ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | different types of white blood cells have different lifetimes , ranging from hours to years , and new cells are produced primarily in the bone marrow ( although some are made or mature in the thymus , lymph nodes , and spleen ) . stem cells and blood cell production red blood cells , white blood cells , and platelet-pr... | my question is : where are hematopoietic stem cells produced ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . | how have we evolved if we have such a complicatid biology ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | their role is also very different from that of red blood cells : they are primarily involved in immune responses , recognizing and neutralizing invaders such as bacteria and viruses . white blood cells are larger than red blood cells , and unlike red blood cells , they have a normal nucleus and mitochondria . white blo... | how many red blood cells are produced every day ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | their role is also very different from that of red blood cells : they are primarily involved in immune responses , recognizing and neutralizing invaders such as bacteria and viruses . white blood cells are larger than red blood cells , and unlike red blood cells , they have a normal nucleus and mitochondria . white blo... | can you have too many red blood cells ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | a hallmark of stem cells is that they divide asymmetrically . that is , one daughter cell remains a stem cell of the same type , while the other daughter cell acquires a new identity . for hematopoietic stem cells , which are found in the bone marrow , one daughter cell remains a hematopoietic stem cell , while the oth... | how does the haemoglobin attach to the oxygen cell how does it bound ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | this negative feedback loop ensures that the number of red blood cells in the body remains relatively constant over time . platelets and clotting platelets , also called thrombocytes , are cell fragments involved in blood clotting . they are produced when large cells called megakaryocytes break into pieces , each one m... | my question is , how do platelets `` know '' where the wound site is ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | all of these components are important to the roles blood plays in the body . what is blood ? blood , by definition , is a fluid that moves through the vessels of a circulatory system . | what kind of ions are found in the blood ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | their role is also very different from that of red blood cells : they are primarily involved in immune responses , recognizing and neutralizing invaders such as bacteria and viruses . white blood cells are larger than red blood cells , and unlike red blood cells , they have a normal nucleus and mitochondria . white blo... | in the video of the `` red blood cells '' i was told that the red blood cells only live 20 to 80 days is that correct still ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | when the lining of a blood vessel is damaged ( for instance , if you cut your finger deeply enough for it to bleed ) , platelets are attracted to the wound site , where they form a sticky plug . the platelets release signals , which not only attract other platelets and make them become sticky , but also activate a sign... | what is the name of the signaling cascade that platelets simulate to turn fibrinogen into fibrin ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | platelets are responsible for blood clotting . white blood cells are part of the immune system and function in immune response . cells and platelets make up about $ 45 $ $ \ % $ percent of human blood , while plasma makes up the other $ 55 $ $ \ % $ percent . | how are the lymphatic , immune and circulatory systems all related ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | all of these components are important to the roles blood plays in the body . what is blood ? blood , by definition , is a fluid that moves through the vessels of a circulatory system . | what is the difference between the 3 blood vessels ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | cells and platelets make up about $ 45 $ $ \ % $ percent of human blood , while plasma makes up the other $ 55 $ $ \ % $ percent . the diagram below shows red blood cells , white blood cells of different types ( large , purple cells ) , and platelets . plasma plasma , the liquid component of blood , can be isolated by ... | what are the 4 types of blood ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | the fibrin forms threads that reinforce the platelet plug , making a clot that prevents further loss of blood . white blood cells white blood cells , also called leukocytes , are much less common than red blood cells and make up less than $ 1\ % $ of the of the cells in blood . their role is also very different from th... | do the white blood cells that engulf pathogens also absorb nutrients and such from them ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | cells and platelets make up about $ 45 $ $ \ % $ percent of human blood , while plasma makes up the other $ 55 $ $ \ % $ percent . the diagram below shows red blood cells , white blood cells of different types ( large , purple cells ) , and platelets . plasma plasma , the liquid component of blood , can be isolated by ... | i know that platelets are not actually cells , but could they be considered a cellular component of blood ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | their role is also very different from that of red blood cells : they are primarily involved in immune responses , recognizing and neutralizing invaders such as bacteria and viruses . white blood cells are larger than red blood cells , and unlike red blood cells , they have a normal nucleus and mitochondria . white blo... | when a red blood cell loses its nucleus where that nucleus goes ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | this negative feedback loop ensures that the number of red blood cells in the body remains relatively constant over time . platelets and clotting platelets , also called thrombocytes , are cell fragments involved in blood clotting . they are produced when large cells called megakaryocytes break into pieces , each one m... | like there is spleen for erythrocytes , is there a sink for dead leucocytes also ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | the denser cells and platelets move to the bottom of the tube , forming red and white layers , while the plasma remains at the top , forming a yellow layer . the plasma is about $ 90\ % $ water , with the remaining $ 10\ % $ made up of ions , proteins , nutrients , wastes , and dissolved gases . the ions , proteins , a... | if plasma is made of water and other substances , is it possible to separate the substances in blood from the water through a method like filtration ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | all of these components are important to the roles blood plays in the body . what is blood ? blood , by definition , is a fluid that moves through the vessels of a circulatory system . | or is it possible that enzymes can separate the water in blood from the other substances ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . | why do our bodies heat up when our heart is pumping but cold and clammy after we die ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . | and what sustains the heat ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . | is it a byproduct of cellular respiration ? |
introduction if you prick your finger or scrape your knee , you 'll see some droplets of blood form . just by eye , these droplets may seem to be made of uniform red liquid , similar to food coloring or paint . however , if you were to look under a microscope , you would see that your blood is actually a mixture of liq... | all of these components are important to the roles blood plays in the body . what is blood ? blood , by definition , is a fluid that moves through the vessels of a circulatory system . | what is the purpose of blood ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | water owes these unique properties to the polarity of its molecules and , specifically , to their ability to form hydrogen bonds with each other and with other molecules . below , we 'll look at how this hydrogen bonding works . polarity of water molecules the key to understanding water ’ s chemical behavior is its mol... | how is hydrogen bonding different from normal electrostatic attraction ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | you may have noticed this as a not-so-handy feature of oil and vinegar salad dressings . vinegar is basically just water with a bit of acid . | how is vinegar in there in water ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | this gives the oxygen end of the water molecule a partial negative charge , while the hydrogen end has a partial positive charge . water is classified as a polar molecule because of its polar covalent bonds and its bent shape $ ^ { 2,3 } $ . hydrogen bonding of water molecules thanks to their polarity , water molecules... | what is used to break hydrogen bonds in water ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | water is classified as a polar molecule because of its polar covalent bonds and its bent shape $ ^ { 2,3 } $ . hydrogen bonding of water molecules thanks to their polarity , water molecules happily attract each other . the plus end of one—a hydrogen atom—associates with the minus end of another—an oxygen atom . | explain why water molecules form hydrogen bonds with one another ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | the lone pairs are slightly more repulsive than the bond electrons , so the angle between the $ \text { o } -\text { h } $ bonds is slightly less than the 109° of a perfect tetrahedron , around 104.5°. $ ^2 $ because oxygen is more electronegative—electron-greedy—than hydrogen , the $ \text { o } $ atom hogs electrons ... | what is a partial positive or partial negative charge ? |
introduction to the properties of water you are a talking , tool-making , learning bag of water . okay , that ’ s not completely fair , but it 's close since the human body is 60 to 70 % water . and it 's not just humans—most animals and even tiny bacteria are made up mostly of water $ ^1 $ . water is key to the existe... | polarity of water molecules the key to understanding water ’ s chemical behavior is its molecular structure . a water molecule consists of two hydrogen atoms bonded to an oxygen atom , and its overall structure is bent . this is because the oxygen atom , in addition to forming bonds with the hydrogen atoms , also carri... | why does the oxygen atom in a water molecule form two ( and not one ) hydrogen bonds ? |
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