Answer:
50 percent
Explanation:
I think it's 10% sorry if i'm wrong
Diffusion
Oxygen molecules can travel through the phospholipid bilayer using diffusion. Diffusion is when molecules travel from a higher concentration to a lower concentration.
as a giant star
used by plants
I believe the answer is B. X-spongy;Y-marrow
fine or sheer enough to be seen through
