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:
i would say broken bone but A maybe i think if its not right sorry
Explanation:
and this is to other people dont comment on my stuff i post
I’m pretty sure it’s b, the membrane, wich is the exterior layer of the cell!
Plant cells can be 3 to 10 times larger than animal cells. An estimate would be between 3 and 10 animal cells squeezing inside a plant cell.
Density independent limiting factors
