Answer:
Explanation:Explanation: Classification of organisms is a hard task cause many organisms have their differences and similarities, whereby making it very complicated in classifying organisms.. All living organisms are classified into groups based on very basic, shared characteristics
Answer:
2. blood vessels under the skin expand
Explanation:
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Age- younger people have smaller capacity
gender-males have larger capacity
muscle mass
aerobic fitness
diseases of the respitorary system
Answer: Earth spins on its axis
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When a mutation has an effect that helps a species adapt to an environment, and specimens of both genders have it, it will end up taking over, causing evolution to gradually happen.
