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NDQ_011297 | the kidneys only work when you are awake. | a. true, b. false | b | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011301 | what is the first step in urine formation? | a. blood flows into the kidney through the urethra, b. blood flows into the kidney through the renal vein, c. blood flows into the kidney through the renal artery, d. blood flows into the kidney through the nephron | c | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011302 | what is the functional unit of the kidney? | a. the urethra, b. the nephron, c. the renal gland, d. the kidney gland | b | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011303 | which best describes the blood that leaves the kidney? | a. the blood that leaves the kidney has much less waste than the blood that, b. the blood that leaves the kidney has much less oxygen than the blood that entered the kidney, c. the blood that leaves the kidney has much less carbon dioxide than the blood that entered the kidney, d. all of the above | a | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011304 | what leaves the capillaries during the filtration process? | a. blood, b. oxygen, c. water, salts, sugars, and urea, d. all of the above | c | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011305 | each day, how much fluid is filtered by the kidneys? | a. 18 liters, b. 180 liters, c. 1,800 liters, d. 180,000 liters | c | Lesson: kidneys
The Kidneys:
The kidneys ( Figure 1.1) are important organs in maintaining homeostasis, the ability of the body to maintain a stable internal environment despite a changing environment. Kidneys perform a number of homeostatic functions. They maintain the volume of body fluids. They maintain the balance... |
NDQ_011326 | chloroplasts are one of the main differences between plant and animal cells. | a. true, b. false | a | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011327 | photosynthesis can only occur during daylight hours. | a. true, b. false | a | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011331 | what molecules are necessary to begin photosynthesis? | a. carbon dioxide and oxygen, b. carbon dioxide and water, c. glucose and oxygen, d. glucose and water | b | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011332 | which best describes chlorophyll? | a. chlorophyll carries water from the roots to the leaves, b. carbon dioxide enters the leaf through chlorophyll, c. chlorophyll is the green pigment in leaves that captures energy from the sun, d. chlorophyll is the site of photosynthesis in the leaf cell | c | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011333 | which of the following does not occur during the light reactions? | a. energy is transferred to atp and nadph, b. energy from sunlight is absorbed, c. glucose is produced from carbon dioxide, d. water is used and oxygen is produced | c | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011334 | what is the waste product of the photosynthesis process? | a. glucose, b. carbon dioxide, c. water, d. oxygen | d | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011335 | which of the following is true concerning glucose? | a. glucose can be considered the food of plants, b. glucose is a simple sugar molecule, c. glucose can be used to store energy in large molecules, such as starch, d. all of the above are true concerning glucose | d | Lesson: light reactions of photosynthesis
In the Presence of Sunlight Carbon Dioxide:
Photosynthesis takes place in the organelle of the plant cell known as the chloroplasts. Chloroplasts are one of the main differences between plant and animal cells. Animal cells do not have chloroplasts, so they cannot photosynthesi... |
NDQ_011336 | limiting factors to population growth raise death rates. | a. true, b. false | a | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011337 | as the population increases, resource availability decreases. | a. true, b. false | a | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011341 | when graphed, exponential growth looks like a | a. i-shaped curve, b. s-shaped curve, c. j-shaped curve, d. x-shaped curve | c | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011342 | when organisms face limiting factors, | a. they have exponential growth, b. they have logistic growth, c. they have carrying capacity growth, d. they have stable growth | b | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011343 | when organisms face limiting factors, | a. the death rate increases, b. the birth rate decreases, c. they have increased migration, d. all of the above | d | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011344 | a small population will most likely | a. have exponential growth, b. have plenty of food to eat, c. have plenty of space to live, d. all of the above | d | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011345 | carrying capacity is reached | a. when birth rates and death rates become stable, b. when there is not enough food, c. as the population grows, d. all of the above | a | Lesson: limiting factors to population growth
Limiting Factors to Population Growth:
For a population to be healthy, factors such as food, nutrients, water and space, must be available. What happens when there are not resources to support the population? Limiting factors are resources or other factors in the environme... |
NDQ_011366 | the epididymis is over 20 feet long in adult males. | a. true, b. false | a | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011367 | the testes store sperm until they leave the body. | a. true, b. false | b | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011371 | what is the organ where sperm cells mature? | a. testes, b. epididymis, c. vas deferens, d. penis | b | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011372 | what organ allows sperm cells to travel to the urethra? | a. testes, b. epididymis, c. vas deferens, d. penis | c | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011373 | semen is formed with a fluid secreted by the | a. testes, b. epididymis, c. vas deferens, d. prostate gland | d | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011374 | what organ or gland surrounds the urethra just below the bladder? | a. the testes, b. the vas deferens, c. the cowpers gland, d. the prostate gland | d | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011375 | what organ or gland sits on top of the testes? | a. the prostate gland, b. the vas deferens, c. the epididymis, d. the scrotum | c | Lesson: male reproductive structures
Male Reproductive Organs:
The male reproductive organs include the penis, testes, and epididymis ( Figure 1.1). The figure also shows other parts of the male reproductive system. The penis is a cylinder-shaped organ. It contains the urethra. The urethra is a tube that carries urine... |
NDQ_011376 | of all the organ systems, the reproductive system is the only one with significant differences between males and females. | a. true, b. false | a | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011377 | males make some of the female sex hormone estrogen. | a. true, b. false | a | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011381 | what is the role of testosterone during the teen years? | a. causes male traits to develop, b. causes the reproductive organs to mature, c. allows for muscle growth, d. all of the above | d | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011382 | what is the role of testosterone during adulthood? | a. helps in sperm production, b. causes male traits to develop, c. causes the reproductive organs to mature, d. all of the above | a | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011383 | what process forms sperm cells? | a. mitosis, b. meiosis, c. the cell cycle, d. fertilization | b | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011384 | how many chromosomes are in a human sperm cell? | a. 1, b. 2, c. 23, d. 46 | c | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011385 | what is a gamete? | a. a haploid sex cell, b. a reproductive cell, c. a sperm or egg cell, d. all of the above | d | Lesson: male reproductive system
The Male Reproductive System Functions:
Dogs have puppies. Cats have kittens. All organisms reproduce, obviously including humans. Like other mammals, humans have a body system that controls reproduction. It is called the reproductive system. It is the only human body system that is ve... |
NDQ_011456 | an egg can be fertilized any day of the monthly cycle. | a. true, b. false | b | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011457 | during menstruation, bleeding occurs as tissue breaks away from the uterus. | a. true, b. false | a | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011461 | the uterus thickens each month | a. to allow the unfertilized egg to easily flow through, b. so it can accept a fertilized egg, c. to lessen menstruation, d. to allow ovulation to occur | b | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011462 | if an egg is not fertilized, | a. the uterus lining breaks down, b. the uterus lining thickens, c. ovulation occurs, d. menstruation stops | a | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011463 | the monthly cycle stops | a. never, b. while the egg is flowing through the uterus, c. during ovulation, d. during pregnancy | d | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011464 | menstruation usually lasts about | a. 1 day, b. 4 days, c. 14 days, d. 28 days | b | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011465 | how long is the normal monthly cycle? | a. 14 days, b. 28 days, c. 30 days, d. there is no normal cycle length | d | Lesson: menstrual cycle
The Female Monthly Cycle:
The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. While the egg and follicle are developing in the ovary, tissues are building up inside the uterus, the reproductive organ where the baby would develop. The... |
NDQ_011476 | microscopes have been around for over 400 years. | a. true, b. false | a | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011477 | antoine van leeuwenhoek discovered the cell by looking at cork through a microscope. | a. true, b. false | b | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011481 | who is known as the father of microscopy? | a. zaccharias janssen, b. robert hooke, c. antoine van leeuwenhoek, d. antoine hooke | c | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011482 | who discovered single-celled protists? | a. zaccharias janssen, b. robert hooke, c. antoine van leeuwenhoek, d. antoine hooke | c | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011483 | what type of microscope would allow scientists to find the shape and surface texture of small objects? | a. light microscope, b. transmission electron microscope, c. scanning electron microscope, d. scanning acoustic microscope | c | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011484 | which of the following is a protist? | a. a palm tree, b. a ladybug, c. a mushroom, d. none of the above are protists | d | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011485 | the most powerful light microscopes can make images up to __________ times larger. | a. 20, b. 200, c. 2,000, d. 20,000 | c | Lesson: microscopes
The Microscope:
Microscopes, tools that you may get to use in your class, are some of the most important tools in biology ( Figure Microscopy is the study of small objects using microscopes. Look at your fingertips. Before microscopes were invented in 1595, the smallest things you could see on your... |
NDQ_011521 | pearls are produced by mollusks. | a. true, b. false | a | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011522 | mollusks are the only organisms to have a radula. | a. true, b. false | a | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011526 | the mollusk shell is formed by the | a. radula, b. mantle, c. chitin, d. gills | b | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011527 | the foot of a squid is probably used for | a. movement along a surface, b. burrowing into the sand, c. jet-propulsion, d. all of the above | c | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011528 | what parts of the mollusk contain chitin? | a. the shell and mantle, b. the shell and the radula, c. the radula and the mantle, d. the gills and the mantle cavity | b | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011529 | the head region of a mollusk contains the | a. gills and mantle cavity, b. the foot and tentacles, c. the tentacles and radula, d. the stomach and the radula | c | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011530 | what type of worms are most closely related to mollusks? | a. flatworms, b. roundworms, c. segmented worms, d. shelled worms | c | Lesson: mollusks
What are Mollusks:
When you take a walk along a beach, what do you find there? Sand, the ocean, lots of sunlight. You may also find shells. The shells you find are most likely left by organisms in the phylum Mollusca. On the beach, you can find the shells of many different mollusks ( Figure 1.1), incl... |
NDQ_011531 | anaerobic exercises such as running, increase muscle strength. | a. true, b. false | b | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011532 | regular physical exercise can prevent lifestyle diseases. | a. true, b. false | a | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011536 | what is the goal of flexibility exercises? | a. to increase cardiovascular health, b. to increase muscle strength, c. to improve the range of motion of muscles and joints, d. to increase the efficient use of oxygen | c | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011537 | how to anaerobic exercises work on muscles? | a. anaerobic exercises allow the muscle to use oxygen more efficiently, b. anaerobic exercises use a resistance against which the muscle has to work, c. anaerobic exercises train the heart to pump blood more efficiently, d. all of the above | b | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011538 | which of the following are aerobic activities? | a. basketball and tennis, b. weight training and sprinting, c. downhill skiing, d. mowing lawn and shoveling snow | d | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011539 | what diseases can be reduced or prevented with regular exercise? | a. heart disease, b. type ii diabetes, c. some types of cancer, d. all of the above | d | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011540 | why is it important to warm-up before any intense physical activity? | a. to prevent muscle strains and tendinitis, b. to increase the heart rate, c. to increase blood flow to the muscles, d. all of the above | d | Lesson: muscles and exercise
Muscles and Exercise:
Regular physical exercise is important in preventing lifestyle diseases such as cardiovascular disease, some types of cancer, type 2 diabetes, and obesity. Regular exercise also improves the health of the muscular system. Muscles that are exercised are bigger and stro... |
NDQ_011541 | when smooth muscles contract, bones move. | a. true, b. false | b | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011542 | tendons join two bones to each other. | a. true, b. false | b | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011546 | the biceps work together with the | a. pectorals, b. triceps, c. quadriceps, d. muscles | b | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011547 | which muscles are used to move the arms forward and backward? | a. quadriceps and pectorals, b. biceps and triceps, c. pectorals and trapezius, d. biceps and pectorals | c | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011548 | which muscles are used to bend the knee? | a. quadriceps and hamstrings, b. pectorals and trapezius, c. hamstrings and trapezius, d. quadriceps and pectorals | a | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011549 | if your heart contracts 75 times a minute, how many times does it contract each day? | a. about 2,000, b. about 10,000, c. slightly over 100,000, d. about 1,000,000 | c | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011550 | which of the following are functions of smooth muscle? | a. helps a woman to push out her baby, b. regulates air flow in lungs, c. move food through the digestive tract, d. all of the above | d | Lesson: muscles bones and movement
Muscles Bones and Movement:
When skeletal muscles contract, bones move. But how do muscles make your bones move? A voluntary muscles usually works across a joint. It is attached to both the bones on either side of the joint by strong cords called tendons. A tendon is a tough band of ... |
NDQ_011551 | a mutation is a change in the dna sequence. the change is always harmful. | a. true, b. false | b | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011552 | deletions occur when a segment of dna is repeated. | a. true, b. false | b | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011556 | what type of mutation occurs when a segment of dna is flipped and then reattached to the same chromosome? | a. deletion, b. inversion, c. insertion, d. translocation | b | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011557 | what type of mutation is the following: caggttgcaag to cagttgcaag | a. deletion, b. frameshift mutation, c. point mutation, d. all of the above | d | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011558 | which best describes a translocation? | a. a segment of dna moves from chromosome 8 to chromosome 2, b. a segment of dna from chromosome 8 is lost, c. a segment of dna from chromosome 2 is repeated, d. a segment of dna from chromosome 8 is swapped with a segment from | d | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011559 | what type of mutation is the following: agttaccaggc to agtttaccaggc | a. deletion, b. inversion, c. insertion, d. translocation | c | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011560 | why are chromosomal mutations dangerous? | a. chromosomal mutations are going to be fairly large, possible affecting many, b. chromosomal mutations always result in deletions, c. chromosomal mutations are always frameshift mutations, d. all of the above | a | Lesson: mutations
Mutations:
The process of DNA replication is not always 100% accurate. Sometimes the wrong base is inserted in the new strand of DNA. This wrong base could become permanent. A permanent change in the sequence of DNA is known as a mutation. Small changes in the DNA sequence are usually point mutations... |
NDQ_011561 | hair and nails are the two main components of the integumentary system. | a. true, b. false | b | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011562 | nails are like the claws of animals. | a. true, b. false | a | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011566 | what animals, other than mammals, have hair? | a. amphibians, b. reptiles, c. birds, d. none, mammals are the only animals to have hair | d | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011567 | about how fast does hair grow? | a. 6 feet a year, b. 1 inch a week, c. 6 inches a month, d. 6 inches a year | d | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011568 | what keeps hair and nails strong? | a. the protein chitin, b. the protein keratin, c. the carbohydrate chitin, d. washing your hair daily and your hands often | b | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011569 | in humans, hair grows everywhere except | a. the soles of the feet, b. the lips, c. the palms of the hands, d. all of the above are areas without hair | d | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011570 | roles of nails include all of the following except | a. the protection of the fingers and toes, b. maintaining warmth, c. sensing the environment, d. all of the above are roles of nails | b | Lesson: nails and hair
Hair and Nails:
Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in ... |
NDQ_011591 | the brain is part of the nervous system. | a. true, b. false | a | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011592 | hormones are made by the nervous system. | a. true, b. false | b | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011596 | what two organ systems control all the other systems? | a. the nervous and skeletal systems, b. the nervous and muscular systems, c. the nervous and endocrine systems, d. the muscular and endocrine systems | c | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011597 | which of the following is a role of the nervous system? | a. to sense your surroundings with your eyes and other sense organs, b. to control your internal body systems and keep them in balance, c. to use language, think, learn, and remember, d. all of the above | d | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011598 | what are the two main organs of the nervous system? | a. the heart and brain, b. the brain and spinal cord, c. the spinal cord and the nerves, d. the brain and nerves | b | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011599 | which of the following are parts of the nervous system? | a. your eyes and other sense organs, b. your heart, which beats faster in an emergency, c. your skin, which senses the environment, d. all of the above | a | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011600 | how does the nervous system help maintain homeostasis? | a. the nervous system prepares your body to fight or flee, b. the nervous system senses the environment inside of your body, including, c. the nervous system senses your surroundings, d. all of the above | b | Lesson: nervous system
Introduction to the Nervous System:
Michelle was riding her scooter when she hit a hole in the street and started to lose control. She thought she would fall, but, in the blink of an eye, she shifted her weight and kept her balance. Her heart was pounding, but at least she didnt get hurt. How wa... |
NDQ_011601 | all reproductive system disorders are caused by pathogens. | a. true, b. false | b | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011602 | injuries to the testes most often occur while playing sports. | a. true, b. false | a | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011606 | this is one of the most common disorders in females. | a. vaginitis, b. yeast infection, c. ovarian cyst, d. breast cancer | a | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011607 | cancer of the testes is most common in males aged | a. 20 to 35, b. 15 to 30, c. 15 to 35, d. 25 to 50 | c | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011608 | painful menstrual periods can be eased with | a. a warm bath or heating pad, b. exercise, c. pain relievers, d. all of the above | d | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011609 | these disorders are serious and usually require surgery. | a. large ovarian cysts, b. breast cancer, c. severe yeast infections, d. both (a) and (b) | d | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011610 | disorders like vaginitis and ovarian cysts are passed from person to person through | a. the blood, b. sexual contact, c. both of the above, d. they cannot be passed from person to person | d | Lesson: non infectious reproductive system disorders
Other Reproductive System Disorders:
Many disorders of the reproductive system are not sexually transmitted infections. They are not caused by pathogens, so they dont spread from person to person. They develop for other reasons. The disorders are different between m... |
NDQ_011621 | two main types of nonrenewable resources are fossil fuels and nuclear power. | a. true, b. false | a | Lesson: nonrenewable resources
Nonrenewable Resources:
A nonrenewable resource is a natural resource that is consumed or used up faster than it can be made by nature. Two main types of nonrenewable resources are fossil fuels and nuclear power. Fossil fuels, such as petroleum, coal, and natural gas, formed from plant a... |
NDQ_011622 | it is possible that by the year 2055, the worlds oil reserves will be gone. | a. true, b. false | a | Lesson: nonrenewable resources
Nonrenewable Resources:
A nonrenewable resource is a natural resource that is consumed or used up faster than it can be made by nature. Two main types of nonrenewable resources are fossil fuels and nuclear power. Fossil fuels, such as petroleum, coal, and natural gas, formed from plant a... |
NDQ_011626 | nuclear energy is derived from | a. uranium, b. helium, c. hydrogen, d. all of the above | a | Lesson: nonrenewable resources
Nonrenewable Resources:
A nonrenewable resource is a natural resource that is consumed or used up faster than it can be made by nature. Two main types of nonrenewable resources are fossil fuels and nuclear power. Fossil fuels, such as petroleum, coal, and natural gas, formed from plant a... |
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