Okay... there's a question here on my paper and IDK the answer and I can't find it on the internet.. so here it is and if youcould answer it.. that would be GRAND!

The earhtworm has a circulatory sustem superior to that of the lower animals that you have studied. Explain why this is necessary.

So like I said, if you could answer this it would be HIGHLY appreciated, but if you cant, ill just leave it blank.. oh and this paper is due first hour tomorrow. Lol. So yeah

The earthworm has a circulatory system superior to that of the lower animal that we studied, explain why this is necessary

Think stupid, dummy, ooloopata because it has the same organs as other organs of other animals u have study