Which of the following organelles is NOT surrounded by a membrane? *
A.) chloroplast
B.) nucleus
C.) mitochondria
D.) ribosome

d.) Ribosome

Explanation:

Ribosomes are different from other organelles because they have no membrane around them that separates them from other organelles.

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.