The answer is A. Amniotic sac
Answer:
The Ozone Layer would repair
Explanation:
CFC's are chlorofluorocarbons. They generally eat the ozone layer. It stands to reason that a reduction in CFC's would reduce the depletion of the ozone layer allowing it to slowly repair itself through natural processes.
Some features might be feathers, thin bones, they are lighter to make flying easier.
Answer:
Cell membrane
If this helped can i have Brainliest
The answer is B hope this helps
