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True or false? (circle one)
skin, hair, and nails are all made of keratin.
Answers: 2
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Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?
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As a small change in a person's dna can cause a genetic disorder
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Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.
Answers: 1
True or false? (circle one)
skin, hair, and nails are all made of keratin....
skin, hair, and nails are all made of keratin....
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