<span>B. He needs to take extra precautions when standing up because of possible orthostatic hypotension and resulting injury from falls.</span>
The answer to your question is C,"Climate". (':
Genetic variation<span> is essential for </span>natural selection<span> because </span>natural selection can only increase or decrease frequency of alleles that already exist in the population.Genetic variation<span> is caused by: mutation
i pulled this off of the site i got the information from i hope this helps you out if not sorry
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If you used a radioactive label to trace the pathway of carbon through cell respiration, the label would begin in glucose and en in co2. TRUE
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