I'm not 100% sure, but I'd say the availability of vaccines and medicine.
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Answer:
respiration, waste production, food intake, cells, breathing
Answer: A) Proteins and nucleic acids
Explanation:
<span>This is coevolution. During this process, two species will, in a reciprocal fashion, affect the evolutionary pattern that each experiences. In this case, the rabbits developed a resistance to the virus, which caused the virii to lose their overall potency.</span>
