The cell membrane an animal cell is similar to your skin.
The answer to this question would be because phospholipid is polar has <span>a </span>charge.
Since phospholipid is polar, it can attract molecule with a charge. That will cause the molecule cant move easily pass the membrane. The hydrophobic molecule doesn't have charge, so the molecule can pass through the phospholipid membrane if it small enough.
My father is an architect wait I’ll ask him
Don’t copy this word for word, since teachers will think it’s cheating because I found it on your work’s PDF file, but here is the answer key answer:
Because recessive alleles are written with the same letter but lower cased of the dominant allele.
Hope this helps!