<span>The muscles that can flex, extend and abduct the arm, are the voluntary muscles, such as the biceps, triceps, and delts. These muscle play a crucial role in mobility of the arm.</span>
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the number of protons in an atom
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natural selection is natural, selective breeding is not. Natural selection is when the best genes are passed down. Selective is when the best of an animal group are forced to mate
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I guess membrane is answer
A.one-sixth is your answer hope this helps
