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NDQ_010460 | in type 2 diabetes, the pancreas produces insulin, but the insulin is not used correctly. | a. true, b. false | a | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010464 | what causes type 1 diabetes? | a. damage to the cells of the pancreas, b. damage to the cells of the liver, c. the production of defective insulin, d. too much sugar in the diet | a | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010465 | what causes type 2 diabetes? | a. damage to the cells of the kidney, b. damage to the cells of the pancreas, c. cells that cannot use insulin, d. the production of defective insulin | c | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010466 | which of the following is a symptom of diabetes? | a. loss of appetite, b. feeling very thirsty, c. hearing loss, d. all of the above | b | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010467 | which of the following is a complication of diabetes? | a. kidney disease, b. vision complications, c. high blood pressure, d. all of the above | d | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010468 | why is type 2 diabetes becoming more common in children? | a. because the gene for type 2 diabetes is more common in the population, b. because of a high sugar and fat diet, c. because it is inherited from their parents, d. because it is easy to get the disease now | b | Lesson: diabetes
Diabetes:
Diabetes is a non-infectious disease in which the body is unable to control the amount of sugar in the blood. People with diabetes have high blood sugar, either because their bodies do not produce enough insulin, or because their cells do not respond to insulin. Insulin is a hormone that hel... |
NDQ_010479 | the mouth is considered an organ of the digestive system. | a. true, b. false | a | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010480 | the movement of food through your digestive system is an involuntary process. | a. true, b. false | a | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010484 | which protein is found in the stomach? | a. saliva, b. pepsin, c. amylase, d. cecum | b | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010485 | what is peristalsis? | a. the absorption of nutrients in the small intestine, b. the release of waste at the end of the digestive process, c. muscle contractions that help food move through the digestive system, d. the release of digestive enzymes from the digestive organs | c | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010486 | what is the first step in the digestive process? | a. the mechanical breakdown of food, b. the release of saliva and digestive enzymes in your mouth, c. the chemical digestion of food, d. the swallowing of food down the esophagus | b | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010487 | which statement is associated with the small intestine of an adult? | a. organ where most absorption occurs, b. covered with millions of villi, c. over 20 feet long, d. all of the above | d | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010488 | which depicts the correct order of food traveling through the digestive system? | a. mouth- esophagus stomach large intestine small intestine - anus, b. mouth- esophagus stomach pancreas intestine - anus, c. mouth esophagus stomach - small intestine - large intestine - anus, d. mouth- esophagus liver stomach intestine - anus | c | Lesson: digestive system organs
Organs of the Digestive System:
The mouth and stomach are just two of the organs of the digestive system. Other digestive system organs are the esophagus, small intestine, and large intestine. Below, you can see that the digestive organs form a long tube ( Figure 1.1). In adults, this t... |
NDQ_010489 | headaches are an illness of the nervous system. | a. true, b. false | a | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010490 | cns diseases can be caused by bacteria and viruses getting into the brain or spinal cord. | a. true, b. false | a | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010494 | which nervous system disease is characterized by memory loss, confusion, and the gradual loss of control over mental and physical abilities? | a. multiple sclerosis, b. huntingtons disease, c. parkinsons disease, d. alzheimers disease | d | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010495 | which nervous system disease results from the immune system attacking and damaging the central nervous system? | a. multiple sclerosis, b. huntingtons disease, c. parkinsons disease, d. alzheimers disease | a | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010496 | which nervous system disease is associated with uncontrolled shaking, slowed movements, and problems with speaking? | a. multiple sclerosis, b. huntingtons disease, c. parkinsons disease, d. alzheimers disease | c | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010497 | which nervous system disease is caused by an abnormal protein that causes the death of neurons? | a. multiple sclerosis, b. huntingtons disease, c. parkinsons disease, d. alzheimers disease | b | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010498 | which nervous system disease causes seizures? | a. cerebral palsy, b. epilepsy, c. migraine, d. meningitis | b | Lesson: diseases of the nervous system
Diseases of the Nervous System:
The nervous system controls sensing, feeling, and thinking. It also controls movement and just about every other body function. Thats why problems with the nervous system can affect the entire body. Diseases of the nervous system include brain and ... |
NDQ_010519 | dna is made of long chains of nucleic acids. | a. true, b. false | b | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010520 | deoxyribose is the base in dna. | a. true, b. false | b | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010524 | which of the following lists the components of a nucleotide? | a. a phosphate group, a deoxyribose, a nitrogen-containing base, b. a phosphate group, a ribose, a nitrogen-containing base, c. a nitrogen group, a deoxyribose, a phosphate-containing base, d. a nitrogen group, a ribose, a phosphate-containing base | a | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010525 | complete the following sentence. the dna double helix has the __________ and __________ groups on the outside, and the __________ connecting the two strands on the inside of the helix. | a. bases, sugar, phosphate, b. phosphate, base, sugar, c. sugar, phosphate, bases, d. none of the above | c | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010526 | if one dna strand reads atcccgag, the other strand will be made up of the complementary bases __________. | a. tagggctg, b. tacccgtc, c. tagggctc, d. atgggctc | c | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010527 | complementary bases are connected by hydrogen bonds. how many hydrogen bonds connect a cytosine to a guanine? | a. 1, b. 2, c. 3, d. 4 | c | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010528 | who determined the percentage of adenine (a) in the dna always equaled the percentage of thymine (t), and the percentage of guanine (g) always equaled the percentage of cytosine (c). | a. james watson, b. rosalind franklin and maurice wilkins, c. erwin chargaff, d. gregor mendel | c | Lesson: dna the genetic material
What is DNA:
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of in... |
NDQ_010539 | echinoderms have an amazing power of regeneration. | a. true, b. false | a | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010540 | echinoderms, such as starfish, have a hard external skeleton. | a. true, b. false | b | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010544 | the water vascular system helps echinoderms | a. breathe, eat and sleep, b. breathe, eat and move, c. breathe, eat and digest food, d. regenerate and reproduce | b | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010545 | what type of feeder is a sea urchin? | a. filter-feeder, b. grazer, c. deposit feeder, d. active hunter | b | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010546 | which phase describes the echinoderm circulatory system? | a. open circulatory system without a heart, b. open circulatory system with an echinoderm heart, c. closed circulatory system with a two-chamber primitive heart, d. closed circulatory system without a heart | a | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010547 | what best describes reproduction of most echinoderms? | a. sexual reproduction with internal fertilization, b. sexual reproduction with external fertilization, c. asexual reproduction with external fertilization, d. asexual reproduction | b | Lesson: echinoderms
What are Echinoderms:
Youre probably familiar with starfish and sand dollars ( Figure 1.1). They are both echinoderms. Sea urchins and sea cucumbers are also echinoderms. Whats similar between these three organisms? They all have radial symmetry. This means that the body is arranged around a centra... |
NDQ_010558 | unsafe water supplies can be deadly to humans. | a. true, b. false | a | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010559 | many parts of the world do not have water treatment plants. | a. true, b. false | a | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010563 | which of the following is an over-enrichment of chemical nutrients in a body of water? | a. acidification, b. toxicification, c. nitrification, d. eutrophication | d | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010564 | what diseases are primarily caused by unsafe water supplies? | a. cancer, b. heart disease, c. digestive system diseases, d. all of the above | c | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010565 | effects of an algal bloom include | a. removing oxygen from the water, b. toxins entering shellfish, c. the death of fish, d. all of the above | d | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010566 | waterborne diseases are caused | a. by pathogens in acid rain, b. by eutrophication, c. by pathogens in sewage or animal manure, d. by algal blooms | c | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010567 | about how many deaths each year from extreme diarrhea is due to unsafe water supplies? | a. under 500,000, b. about 1 million, c. about 1.5 million, d. over 10 million | c | Lesson: effects of water pollution
Effects of Water Pollution:
Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for recreation and fishing. Drinking water can also be affected if a toxin enters the groundwater.... |
NDQ_010568 | plants convert glucose into atp through photosynthesis. | a. true, b. false | b | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010569 | because of the constant loss of energy, there can be a maximum of 7 trophic levels in a food chain. | a. true, b. false | b | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010573 | how much of the original energy of the producers is available to an organism in the third trophic level? | a. 10%, b. 1%, c. 0.1%, d. 10 grams | b | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010574 | which of the following organism would be in the first trophic level? | a. mouse, b. caterpillar, c. maple tree, d. bee | c | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010575 | what trophic level has autotrophs? | a. only the first level, b. the first and second levels, c. all levels except the first, d. only the last level | a | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010576 | what trophic level has heterotrophs? | a. only the first level, b. only the second level, c. all levels except the first, d. only the last level | c | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010577 | in what trophic level would you find a shark? | a. the first level, b. the second level, c. all levels except the first, d. the last level | d | Lesson: energy pyramids
Energy Pyramids:
When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. But how much of that energy is transferred to the herbivore? Remember that plants are producers, bringing the energy into the ecosystem by converting sunlight into glucose. Does the plant ... |
NDQ_010578 | an enzyme is a protein that speeds up chemical reactions in the body. | a. true, b. false | a | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010579 | enzymes in saliva break down complex carbohydrates into simple sugars. | a. true, b. false | a | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010583 | what enzyme is produced in the stomach and digests proteins? | a. amylase, b. pepsin, c. trypsin, d. lipase | b | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010584 | what enzymes are made in the pancreas? | a. amylase and trypsin, b. pepsin and trypsin, c. trypsin and ribonuclease, d. amylase and lipase | c | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010585 | what hormone signals when you are hungry? | a. ghrelin, b. gastrin, c. secretin, d. cholecystokinin | a | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010586 | what enzyme digests lipids? | a. trypsin, b. pancreatic lipase, c. pepsin, d. gastrin | b | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010587 | what happens to the digestive enzymes after they are used? | a. they are broken down by proteases, b. they are reabsorbed by the small intestine, c. they return to the bloodstream, d. they are reused | d | Lesson: enzymes in the digestive system
The Role of Enzymes in the Digestive System:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules in... |
NDQ_010588 | you can tell the phenotype of a dog by looking at it. | a. true, b. false | a | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010589 | natural selection cannot distinguish between dominant and recessive phenotypes. | a. true, b. false | b | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010593 | if the recessive allele r is lethal, what genotypes will natural selection benefit? | a. r only, b. rr only, c. rr and rr, d. rr and rr | c | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010594 | natural selection acts on _________________________. | a. heterozygous individuals, b. homozygous individuals, c. the phenotype, d. the genotype | c | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010595 | why dont individuals with tay-sachs pass on the tay-sachs allele? | a. because tay-sachs disease is a recessive human genetic disorder, b. because carriers are not affected, c. because affected individuals do not have children, d. all of the above for questions 9 and 10, use the following information. in the fictional hobbit, there exist 5 alleles of the foot size gene: f1 - f5. each a... | c | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010596 | how does the f5 allele stay in the gene pool? | a. all heterozygous genotypes with an f5 allele are carriers, b. all f5 homozygous individuals are selected for by natural selection, c. the f5f5 hobbit is selected for by natural selection, d. all of the above | a | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010597 | what alleles of the foot size gene are part of the gene pool? | a. only the dominant alleles, b. f1 and f2 only, c. f1, f2, f3 and f4, d. all 5 f alleles | d | Lesson: evolution acts on the phenotype
Evolution Acts on the Phenotype:
Natural selection acts on the phenotype (the traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype (the genetic makeup) of an individual. For many traits, the homozygous genotype... |
NDQ_010598 | the excretory system includes organs that are also components of other organ systems. | a. true, b. false | a | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010599 | urine is a waste formed by the kidneys. | a. true, b. false | a | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010603 | what part of the excretory system is also part of the urinary system? | a. the lungs, b. the skin, c. the large intestine, d. the kidneys | d | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010604 | what part of the excretory system is also part of the integumentary system? | a. the lungs, b. the skin, c. the large intestine, d. the kidneys | b | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010605 | what organ of the excretory system removes solid waste? | a. the lungs, b. the skin, c. the large intestine, d. the kidneys | c | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010606 | what is the function of the lungs in excretion? | a. to remove oxygen, b. to remove carbon dioxide, c. to exchange gases, d. all of the above | b | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010607 | what is the function of the skin in excretion? | a. to remove water, salts, and other wastes, b. to remove urea, salts, and excess water, c. to remove nitrogen and excess water, d. to remove excess nutrients and other wastes | a | Lesson: excretion
Excretion:
So what happens to your bodys wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall ... |
NDQ_010608 | men get more uti than women. | a. true, b. false | b | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010609 | most utis are not serious. | a. true, b. false | a | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010613 | what is the goal of dialysis? | a. to filter the blood when the kidneys cannot, b. to remove the pathogens causing a uti, c. to replace the kidneys, d. to remove kidney stones | a | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010614 | what causes utis? | a. utis are caused by viruses, b. utis are caused by bacteria, c. utis occur when minerals in the urine crystallize and stick together, d. utis can occur by the loss of blood | b | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010615 | the most common type of uti is | a. kidney stone infection, b. a kidney infection, c. a bladder infection, d. an urethra infection | c | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010616 | causes of kidney failure include | a. accidents that injure the kidneys, b. some drugs and poisons, c. the loss of a lot of blood, d. all of the above | d | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010617 | which of the following are symptoms of a uti? | a. a burning feeling when you urinate, b. intense urges to urinate, c. foul-smelling urine, d. all of the above | d | Lesson: excretory system problems
Problems of the Excretory System:
The urinary system controls the amount of water in the body and removes wastes. Any problem with the urinary system can also affect many other body systems.
Kidney Stones:
In some cases, certain mineral wastes can form kidney stones ( Figure 1.1). S... |
NDQ_010618 | members of a species that are clumped together may have a better chance of reproducing. | a. true, b. false | a | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010619 | birth rate + death rate = growth rate | a. true, b. false | b | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010623 | 10 spiders/square meter is an example of | a. population size, b. population dispersion, c. population density, d. all of the above | c | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010624 | a population with equal birth and death rates | a. will grow in size, b. will remain the same size, c. will decrease in size, d. will fluctuate in size | b | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010625 | a population of mostly young organisms and a high birth rate will | a. grow in size, b. decrease in size, c. will stay the same size, d. will grow than drop in size | a | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010626 | individuals of zebra may showed clustered dispersion because | a. this makes hunting easier, b. this offers protection from predators, c. this allows them to save water, d. all of the above | b | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010627 | which of the following statements is correct? | a. members of the same species that live in the same area can form two different populations, b. members of two species that live in the same area can form one population, c. members of two species that live in the same area form two different, d. individuals of the same species that live in the same area but cannot re... | c | Lesson: features of populations
What is a Population:
A population is a group of organisms of the same species, all living in the same area and interacting with each other. Since they live together in one area, members of the same species reproduce together. Ecologists who study populations determine how healthy or st... |
NDQ_010628 | breasts are considered extremely important reproductive organs. | a. true, b. false | b | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010629 | a girl is born with over 1,000,000 immature eggs. | a. true, b. false | a | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010633 | the vagina is a passageway that connects the uterus to the | a. ovaries, b. fallopian tubes, c. urethra, d. outside | d | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010634 | what organ secretes estrogen? | a. the vagina, b. the uterus, c. the ovary, d. the fallopian tube | c | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010635 | where does fertilization occur? | a. the vagina, b. the uterus, c. the ovary, d. the fallopian tube | d | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010636 | about how many eggs does a girl have when she begins puberty? | a. about 50, b. about 100, c. about 1,000, d. over 25,000 | d | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010637 | where does a baby develop until birth? | a. the vagina, b. the uterus, c. the fornix, d. the cervix | b | Lesson: female reproductive structures
Female Reproductive Organs:
The female reproductive organs include the vagina, uterus, fallopian tubes, and ovaries ( Figure 1.1). The breasts are not shown in this figure. They are not considered reproductive organs, even though they are involved in reproduction. They contain ma... |
NDQ_010638 | all of the eggs a woman will ever have are produced before birth. | a. true, b. false | a | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010639 | the female reproductive system prepares itself every week to accept a fertilized egg. | a. true, b. false | b | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010643 | a human cell has 46 chromosomes. how many chromosomes are in a human egg? | a. 92, b. 46, c. 23, d. 2 | c | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010644 | what is the role of estrogen in the adult female? | a. to release eggs, b. to maintain her reproductive structures, c. to develop female traits, d. all of the above | a | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010645 | an average, how many eggs does a female release each cycle? | a. 1, b. 2, c. 10, d. 100 | a | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010646 | what happens to the female reproductive system if an egg is not fertilized? | a. the system prepares itself to allow the baby to develop, b. the system must prepare itself again in case an egg is fertilized the next, c. the baby begins to grow in the uterus, d. nothing happens | b | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010647 | which best describes an egg cell? | a. round with a diploid nucleus, b. round with a haploid nucleus, c. round with lots of cytoplasm, d. round with a flagella tail | b | Lesson: female reproductive system
The Female Reproductive System Functions:
Most of the male reproductive organs are outside of the body. But female reproductive organs are inside of the body. The male and female organs also look very different and have different jobs. Two of the functions of the female reproductive ... |
NDQ_010648 | anaerobic respiration is less effective than aerobic respiration. | a. true, b. false | a | Lesson: fermentation
Fermentation:
Sometimes cells need to obtain energy from sugar, but there is no oxygen present to complete cellular respiration. In this situation, cellular respiration can be anaerobic, occurring in the absence of oxygen. In this process, called fermentation, only the first step of respiration, g... |
NDQ_010649 | in the absence of oxygen, yeast make alcohol. | a. true, b. false | a | Lesson: fermentation
Fermentation:
Sometimes cells need to obtain energy from sugar, but there is no oxygen present to complete cellular respiration. In this situation, cellular respiration can be anaerobic, occurring in the absence of oxygen. In this process, called fermentation, only the first step of respiration, g... |
NDQ_010653 | how many times more effective is aerobic respiration compared to anaerobic respiration? | a. 2x, b. 9x, c. 18x, d. 36x | c | Lesson: fermentation
Fermentation:
Sometimes cells need to obtain energy from sugar, but there is no oxygen present to complete cellular respiration. In this situation, cellular respiration can be anaerobic, occurring in the absence of oxygen. In this process, called fermentation, only the first step of respiration, g... |
NDQ_010654 | what is the main goal of fermentation? | a. to produce two atp, b. to allow glycolysis to occur, c. to make alcohol, d. to produce lactic acid | b | Lesson: fermentation
Fermentation:
Sometimes cells need to obtain energy from sugar, but there is no oxygen present to complete cellular respiration. In this situation, cellular respiration can be anaerobic, occurring in the absence of oxygen. In this process, called fermentation, only the first step of respiration, g... |
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