Cells arebricks because they aww red piled up yo make something, but they arebecause cells are and bricks are not

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

it should be briana that has it to me

the answer is :