Answer:
C
Explanation:
sorry if im wrong, looking at it from this angle is throwing me off... Anyways hope this helps
Answer:
The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
Explanation:
U 2 can help me by marking as brainliest.......
Answer:
The structural and fundamental unit of life is called the cell.
