Question

Why is the frog's respiratory and circulatory system of frogs more complicated than worms, why do you think so?

Answer 1

Hello and welcome to OpenStudy. First, I think you know how they are different and how they are the same. Both have pores on the skin. Do you think the frog can get the oxygen to the center of its body as easily as the worm can? Think of size. :)

Answer 2

thanks :)

Answer 3

You're welcome. Enjoy your stay :)