Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
Skins cell reproduce more because let’s say for example you get hurt and the skin falls off in order to protect you it grows back immediately
In the trp (tryptophan) operon, the* repressor protein *binds to the product of the trp operon synthesis pathway, called *tryptophan *forming the active *corepresser *
