The answer would be B, because they have subcellular organelles.
Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
They were similar to modern humans in that they were bipedal (that is, they walked on two legs), but, like apes, they had small brains. Their canine teeth were smaller than those found in apes, and their cheek teeth were larger than those of modern humans.
Number 13 is C
Number 14 is C
Number 15 is B
