One of the major elements of natural selection is that all species have genetic variation. Natural selection is a process when organisms adapt better to their environment. It is an essential key in evolution. There is a change in phenotype of a population over time.
Answer:
Viruses rely on the cells of other organisms to survive and reproduce, because they can't capture or store energy themselves
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Answer:
People drink water that has been contaminated by animal feces
Explanation:
Your answer to the question is true
