Im really confused rn so frogs and birds dont have teeth right? then why does fumikage tokoyami from bnha has teeth? but thats not all, does tsuyu asui from bnha have i cant work on school cause its bothering me, me

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.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.