Which diagram looks most like a plant cell? What is the function of the green circles in “B”?

What is the difference between the outer covering of “A” and “B”?

B, Ribosomes and they are a cell structure that makes protein, in "A" it only has a cell wall and in "B" it has both cell wall and cell membrane

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.