Answer:
A ball falling down from the grip of someone's hand
Explanation:
1. natural selection acts on existing traits because you can not evolve into something you didn't have
2. original structures evolve to accomplish new function in order to survive
Answer:
When they grow bigger or there are some differences that haven't been there before? (Ex. Spots, stripes, Longer tusks)
Explanation:
I'm just thinking of this logically ok so don't know if this is correct but hope this helps.
This might help:
https://quizlet.com/1965478/environmental-health-test-1-flash-cards/
