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10,600 | NDQ_007956 | the excretory system | Clean blood leaves a kidney through a(n) | null | null | Multiple Choice | a. artery., b. capillary., c. urethra., d. vein. | d |
10,601 | NDQ_007957 | the excretory system | The liver removes excess water and salts from the blood. | null | null | Multiple Choice | a. true, b. false | b |
10,602 | NDQ_007958 | the excretory system | Each kidney contains more than a million nephrons. | null | null | Multiple Choice | a. true, b. false | a |
10,603 | NDQ_007959 | the excretory system | Urine moves through the ureters by | null | null | Multiple Choice | a. gravity., b. diffusion., c. peristalsis., d. none of the above | c |
10,604 | NDQ_007960 | the excretory system | Some of the water filtered out of the blood by nephrons is reabsorbed. | null | null | Multiple Choice | a. true, b. false | a |
10,605 | NDQ_007961 | the excretory system | How do the kidneys help maintain homeostasis? | null | null | Multiple Choice | a. They control the amount of water in the body., b. They secrete a hormone that regulates sweat production., c. They secrete a hormone that stimulates muscle contractions., d. all of the above | a |
10,606 | NDQ_007962 | the excretory system | How does untreated diabetes cause kidney failure? | null | null | Multiple Choice | a. It leads to kidney stones that damage nephrons., b. It damages capillaries in the kidneys., c. It causes frequent urinary tract infections., d. It causes urine to back up in the kidneys. | b |
10,607 | NDQ_007963 | the excretory system | The bladder is the urinary system organ where urine forms. | null | null | Multiple Choice | a. true, b. false | b |
10,608 | NDQ_007964 | the excretory system | The only cure for kidney failure is a kidney transplant. | null | null | Multiple Choice | a. true, b. false | a |
10,609 | NDQ_007965 | the excretory system | __muscular tube that carries urine out of the body | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | d |
10,610 | NDQ_007966 | the excretory system | __tiny structure in a kidney that filters blood and forms urine | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | c |
10,611 | NDQ_007967 | the excretory system | __sac-like organ that stores urine | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | g |
10,612 | NDQ_007968 | the excretory system | __mineral crystal that forms in urine inside a kidney | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | b |
10,613 | NDQ_007969 | the excretory system | __artificial filtering of blood through a machine | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | f |
10,614 | NDQ_007970 | the excretory system | __muscular tube that carries urine from a kidney to the urinary bladder | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | a |
10,615 | NDQ_007971 | the excretory system | __main organ of the urinary system | null | null | Multiple Choice | a. a.ureter, b. b.kidney stone, c. c.nephron, d. d.urethra, e. e.kidney, f. f.hemodialysis, g. g.urinary bladder | e |
10,616 | NDQ_008007 | chemistry of living things | _________smallest particle of an element that still has the properties of that element | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | e |
10,617 | NDQ_008008 | chemistry of living things | _________carbohydrate that makes up the cell walls of plants | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | d |
10,618 | NDQ_008009 | chemistry of living things | _________biochemical compound that consists of nucleotides | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | g |
10,619 | NDQ_008010 | chemistry of living things | _________smallest particle of a compound that still has the properties of that compound | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | c |
10,620 | NDQ_008011 | chemistry of living things | _________class of biochemical compound that consists of amino acids | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | b |
10,621 | NDQ_008012 | chemistry of living things | _________class of biochemical compound that consists of fatty acids | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | f |
10,622 | NDQ_008013 | chemistry of living things | _________protein that speeds up biochemical reactions | null | null | Multiple Choice | a. a.enzyme, b. b.protein, c. c.molecule, d. d.cellulose, e. e.atom, f. f.lipid, g. g.nucleic acid | a |
10,623 | NDQ_008021 | chemistry of living things | _________Atoms can be observed only with an electron microscope. | null | null | Multiple Choice | a. true, b. false | a |
10,624 | NDQ_008022 | chemistry of living things | _________Glycogen is a complex carbohydrate found in animals. | null | null | Multiple Choice | a. true, b. false | a |
10,625 | NDQ_008023 | chemistry of living things | _________Glucose is a polymer of starch. | null | null | Multiple Choice | a. true, b. false | b |
10,626 | NDQ_008024 | chemistry of living things | _________Saturated fatty acids are found in oils | null | null | Multiple Choice | a. true, b. false | b |
10,627 | NDQ_008025 | chemistry of living things | _________The genetic code tells cells how to make proteins. | null | null | Multiple Choice | a. true, b. false | a |
10,628 | NDQ_008026 | chemistry of living things | _________The substances that start a chemical reaction are called products. | null | null | Multiple Choice | a. true, b. false | b |
10,629 | NDQ_008027 | chemistry of living things | _________Cellular respiration involves catabolic reactions. | null | null | Multiple Choice | a. true, b. false | a |
10,630 | NDQ_008028 | chemistry of living things | Major elements in the human body include | null | null | Multiple Choice | a. hydrogen., b. carbon dioxide., c. water., d. all of the above | a |
10,631 | NDQ_008029 | chemistry of living things | Which of the following is one of the four main classes of biochemical compounds? | null | null | Multiple Choice | a. carbohydrates, b. sugars, c. fats, d. DNA. | a |
10,632 | NDQ_008030 | chemistry of living things | Uses of lipids include | null | null | Multiple Choice | a. storing energy., b. making proteins., c. making up cell walls., d. regulating life processes. | a |
10,633 | NDQ_008031 | chemistry of living things | Functions of proteins include | null | null | Multiple Choice | a. making up muscles., b. fighting infections., c. transporting materials., d. all of the above | d |
10,634 | NDQ_008032 | chemistry of living things | How does RNA differ from DNA? | null | null | Multiple Choice | a. RNA consists of one chain of nucleotides rather than two chains., b. RNA has the nitrogen base thymine instead of uracil., c. RNA is a fatty acid rather than a nucleic acid., d. all of the above | a |
10,635 | NDQ_008033 | chemistry of living things | Anabolic reactions are biochemical reactions in which | null | null | Multiple Choice | a. chemical bonds are broken., b. chemical bonds are formed., c. energy is released., d. two of the above | b |
10,636 | NDQ_008034 | chemistry of living things | Which statement about enzymes is true? | null | null | Multiple Choice | a. Enzymes are products in biochemical reactions., b. Enzymes speed up biochemical reactions., c. Enzymes are used up in biochemical reactions., d. Enzymes are reactants in biochemical reactions. | b |
10,637 | NDQ_008063 | the nervous system | A bundle of nerve cells make up a(n) | null | null | Multiple Choice | a. neuron., b. nerve., c. axon., d. lobe. | b |
10,638 | NDQ_008064 | the nervous system | Functions of the human nervous system include | null | null | Multiple Choice | a. sensing the internal and external environments., b. helping maintain homeostasis of the body., c. preparing the body to fight or flee in emergencies., d. all of the above | d |
10,639 | NDQ_008065 | the nervous system | How do nerve impulses travel across a synapse? | null | null | Multiple Choice | a. They swim across through synaptic fluid., b. They are carried across by special chemicals., c. They jump across like an electric spark., d. They move across through interneurons. | b |
10,640 | NDQ_008066 | the nervous system | The type of neuron that carries messages from the brain to internal organs and glands is a(n) | null | null | Multiple Choice | a. motor neuron., b. sensory neuron., c. organ neuron., d. endocrine neuron. | a |
10,641 | NDQ_008067 | the nervous system | The brain stem | null | null | Multiple Choice | a. is the smallest of the three main part of the brain., b. carries nerve impulses between the brain and spinal cord., c. controls involuntary body functions such as digestion., d. all of the above | d |
10,642 | NDQ_008068 | the nervous system | Which statement about the brain is false? | null | null | Multiple Choice | a. It is the most complex organ in the body., b. It is the largest organ in the body., c. It consists of billions of neurons., d. It serves as the control center of the body. | b |
10,643 | NDQ_008069 | the nervous system | Which part of the brain controls involuntary functions such as heartbeat? | null | null | Multiple Choice | a. cerebrum, b. cerebellum, c. brain stem, d. temporal lobe | c |
10,644 | NDQ_008070 | the nervous system | The part of the cerebrum that controls hearing is the | null | null | Multiple Choice | a. frontal lobe., b. parietal lobe., c. temporal lobe., d. occipital lobe. | c |
10,645 | NDQ_008071 | the nervous system | Which part of the peripheral nervous system controls only involuntary responses of the body? | null | null | Multiple Choice | a. sensory division, b. motor division, c. somatic nervous system, d. autonomic nervous system | d |
10,646 | NDQ_008072 | the nervous system | Which part of the peripheral nervous system controls muscles that are under voluntary control? | null | null | Multiple Choice | a. sympathetic division, b. parasympathetic division, c. somatic nervous system, d. autonomic nervous system | c |
10,647 | NDQ_008074 | the nervous system | Central nervous system infections include | null | null | Multiple Choice | a. encephalitis., b. epilepsy., c. meningitis., d. two of the above | d |
10,648 | NDQ_008076 | the nervous system | Use of a drug without the advice of medical professionals and for reasons not originally intended is referred to as | null | null | Multiple Choice | a. drug addiction., b. drug overdose., c. drug abuse., d. none of the above | c |
10,649 | NDQ_008084 | the nervous system | A stroke occurs when a blood clot blocks blood flow to part of the brain. | null | null | Multiple Choice | a. true, b. false | a |
10,650 | NDQ_008085 | the nervous system | Psychoactive drugs include antidepressants and caffeine. | null | null | Multiple Choice | a. true, b. false | a |
10,651 | NDQ_008087 | the nervous system | The cerebellum is divided down the middle to form right and left hemispheres. | null | null | Multiple Choice | a. true, b. false | b |
10,652 | NDQ_008090 | the nervous system | The spinal cord is part of the peripheral nervous system. | null | null | Multiple Choice | a. true, b. false | b |
10,653 | NDQ_008091 | the nervous system | The sensory division of the peripheral nervous system carries messages away from the brain. | null | null | Multiple Choice | a. true, b. false | b |
10,654 | NDQ_008092 | the nervous system | A single neuron may have thousands of dendrites. | null | null | Multiple Choice | a. true, b. false | a |
10,655 | NDQ_008093 | the nervous system | The cerebellum controls conscious functions such as thinking and speaking. | null | null | Multiple Choice | a. true, b. false | b |
10,656 | NDQ_008094 | the nervous system | The two hemispheres of the cerebrum are identical to each other. | null | null | Multiple Choice | a. true, b. false | b |
10,657 | NDQ_008095 | the nervous system | The peripheral nervous system includes all of the nervous tissue in the body except for the brain. | null | null | Multiple Choice | a. true, b. false | b |
10,658 | NDQ_008096 | the nervous system | The sympathetic division of the autonomic nervous system prepares the body for emergencies. | null | null | Multiple Choice | a. true, b. false | a |
10,659 | NDQ_008097 | the nervous system | Seizures in epilepsy are caused by abnormal electrical activity in the brain. | null | null | Multiple Choice | a. true, b. false | a |
10,660 | NDQ_008098 | the nervous system | All psychoactive drugs are illegal drugs. | null | null | Multiple Choice | a. true, b. false | b |
10,661 | NDQ_008099 | the nervous system | __type of nerve cell that carries nerve impulses back and forth between sensory and motor neurons | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | g |
10,662 | NDQ_008100 | the nervous system | __largest part of the brain | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | f |
10,663 | NDQ_008101 | the nervous system | __part of a neuron that contains the nucleus and other organelles | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | c |
10,664 | NDQ_008102 | the nervous system | __part of the brain that controls coordination and balance | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | b |
10,665 | NDQ_008103 | the nervous system | __part of a neuron that receives nerve impulses from other cells | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | d |
10,666 | NDQ_008104 | the nervous system | __part of a neuron that passes on nerve impulses to other cells | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | a |
10,667 | NDQ_008105 | the nervous system | __electrical message carried by neurons | null | null | Multiple Choice | a. a.axon, b. b.cerebellum, c. c.cell body, d. d.dendrite, e. e.nerve impulse, f. f.cerebrum, g. g.interneuron | e |
10,668 | NDQ_008106 | the senses | In the eye, light is focused by the | null | null | Multiple Choice | a. retina., b. cornea., c. lens., d. two of the above | d |
10,669 | NDQ_008107 | the senses | We see most objects because they reflect light from another source. | null | null | Multiple Choice | a. true, b. false | a |
10,670 | NDQ_008108 | the senses | The colored part of the eye is called the iris. | null | null | Multiple Choice | a. true, b. false | a |
10,671 | NDQ_008109 | the senses | Which statement about hyperopia is true? | null | null | Multiple Choice | a. It can be corrected with convex lenses., b. It happens because the eyeball is too long., c. It occurs when images focus in front of the retina., d. two of the above | a |
10,672 | NDQ_008110 | the senses | Nerve impulses travel from the ears to the brain through the | null | null | Multiple Choice | a. optic nerve., b. spinal cord., c. auditory nerve., d. Eustachian tube. | c |
10,673 | NDQ_008111 | the senses | Hyperopia can be corrected with concave lenses. | null | null | Multiple Choice | a. true, b. false | b |
10,674 | NDQ_008112 | the senses | The only function of the ears is to sense sound. | null | null | Multiple Choice | a. true, b. false | b |
10,675 | NDQ_008113 | the senses | How many different tastes can taste buds detect? | null | null | Multiple Choice | a. 5, b. 10, c. 15, d. 1,000 | a |
10,676 | NDQ_008114 | the senses | Taste neurons on the tongue can detect thousands of different tastes. | null | null | Multiple Choice | a. true, b. false | b |
10,677 | NDQ_008115 | the senses | What happens when sound waves strike the eardrum? | null | null | Multiple Choice | a. It vibrates., b. It sounds like a drum., c. It sends nerve impulses to the brain., d. none of the above | a |
10,678 | NDQ_008117 | the senses | Sensory neurons in the nose sense chemicals in the air. | null | null | Multiple Choice | a. true, b. false | a |
10,679 | NDQ_008119 | the senses | The sense of smell plays an important role in the sense of taste. | null | null | Multiple Choice | a. true, b. false | a |
10,680 | NDQ_008120 | the senses | __structure in the inner ear that responds to vibrations by sending nerve impulses to the auditory nerve | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | f |
10,681 | NDQ_008123 | the senses | __opening in the center of the eye that lets light pass through | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | c |
10,682 | NDQ_008125 | the senses | __vision problem in which distant objects can be seen clearly but nearby objects appear blurry | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | b |
10,683 | NDQ_008126 | the senses | __layer of cells at the back of the eye where images normally form | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | a |
10,684 | NDQ_008127 | the senses | If you lost vision in one eye, you could still see in three dimensions. | null | null | Multiple Choice | a. true, b. false | b |
10,685 | NDQ_008128 | the senses | When light reaches the eye, it passes first through the iris. | null | null | Multiple Choice | a. true, b. false | b |
10,686 | NDQ_008129 | the senses | __vision problem in which nearby objects can be seen clearly but distant objects appear blurry | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | g |
10,687 | NDQ_008130 | the senses | The middle ear contains the cochlea and semicircular canals. | null | null | Multiple Choice | a. true, b. false | b |
10,688 | NDQ_008131 | the senses | __structure in the inner ear involved in maintaining balance | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | d |
10,689 | NDQ_008132 | the senses | __bundle of sensory neurons on the tongue that sense chemicals in food | null | null | Multiple Choice | a. a.retina, b. b.hyperopia, c. c.pupil, d. d.semicircular canal, e. e.taste bud, f. f.cochlea, g. g.myopia | e |
10,690 | NDQ_008133 | the senses | Nerve cells that sense touch are most numerous in the skin. | null | null | Multiple Choice | a. true, b. false | a |
10,691 | NDQ_008134 | the senses | Rods are light-sensing cells in the eye that can sense dim light. | null | null | Multiple Choice | a. true, b. false | a |
10,692 | NDQ_008135 | the senses | Why are human beings able to see in three dimensions? | null | null | Multiple Choice | a. We have two eyes that face the same direction but are a few inches apart., b. Both of our eyes focus on the same object but from slightly different angles., c. The brain uses images from the two eyes to determine the distance to the object., d. all of the above | d |
10,693 | NDQ_008136 | the senses | When light from an object reaches the human eye, it passes first through the | null | null | Multiple Choice | a. pupil., b. cornea., c. lens., d. iris. | b |
10,694 | NDQ_008137 | the senses | Which statement about rods and cones in the human eye is false? | null | null | Multiple Choice | a. Rods and cones are special light-sensing cells in the lens., b. Rods and cones send nerve impulses to the optic nerve., c. Cones sense different colors of light and rods sense dim light., d. none of the above | a |
10,695 | NDQ_008138 | the senses | Myopia | null | null | Multiple Choice | a. occurs when images focus in front of the retina., b. results when the eyeball is too short., c. can be corrected with convex lenses., d. all of the above | a |
10,696 | NDQ_008139 | the senses | The middle ear | null | null | Multiple Choice | a. contains three tiny bones called ossicles., b. passes vibrations from the eardrum to the inner ear., c. amplifies vibrations as they pass through., d. all of the above | d |
10,697 | NDQ_008140 | the senses | The human eye senses differences in the wavelengths of visible light as different | null | null | Multiple Choice | a. brightnesses., b. intensities., c. shapes., d. colors. | d |
10,698 | NDQ_008141 | the senses | Nerve cells that sense touch are found mainly in the | null | null | Multiple Choice | a. joints., b. muscles., c. heart., d. skin. | d |
10,699 | NDQ_008149 | the endocrine system | All endocrine glands secrete hormones into | null | null | Multiple Choice | a. the bloodstream., b. local tissues., c. the digestive system., d. target cells. | a |
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