Question

Even though all cells have different shapes and sizes they also all have cytoplasm and a

a. cell wall.
b. cell membrane.
c. mitochondrion.
d. nucleus.

Answer 1

that would be b. cell membrane. ^^

Answer 2

B. cell membrane

A is incorrect because animals do not have cell walls
C and D are incorrect because prokaryotes don't have membrane bound organelles (aka the mitochondrion and nucleus).