How would you change your model to show what happens when other cell receives the protein

the protein to enter the cell the molecular size should be small to pass the cell membrane because it is selective membrane.

But if it is cell wall it is fully permable so it can pass easily and enter to the cell membrane which is selective membrane

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.

the answer is d.) homologous; have mammary glands