Answer:
I think the answer is determining infectivity of a virus
Explanation:
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A frog whose skin looks like the environment in which it lives
Answer:
A. their nephron loop is closely wrapped with vasa recta
Explanation:
Answer:A bat has a much more flexible wing structure. It is very much like a human arm and hand, except it has a thin membrane of skin (called the patagium) extending between the "hand" and the body, and between each finger bone. Bats can move the wing like a hand, essentially "swimming" through the air.
Explanation:
