Which condition is a biotic factor if an aquarium ecosystem ? a. temperature of the water b. algae growing on the glass c. gravel on the bottom of the aquarium. d. amount of oxygen in the water

wegner's theory did not explain how the continents could move

explanation:

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.