What is empirical evidence?
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a. evidence that supports a scientific hypothesis
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b. evidence based on personal beliefs or preferences
c. evidence gathered through observation and experimentation
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d. evidence presented as scientific but not gathered through reliable
scientific methods
submi

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.