What is the circulatory system of cnidarians?

A circulatory system helps with the exchange of gases and nutrients in an animal's body. But what if you don't have a circulatory system? In this lesson learn how cnidarians exchange substances even without a complex internal circulation system. read more

In this lesson learn how cnidarians exchange substances even without a complex internal circulation system. read more

One animal that lies in the Cnidaria class is the jellyfish. Jellyfish are different from other animals. Jellyfish are such a unique kind of marine animal that they actually dont have a specialized circulatory system. They dont even have a specialized respiratory system or nervous system. read more

I am not a marine biologist but since circulation’s primary function is to provide oxygen to the organism and remove carbon dioxide, as well as provide nutrients to the cells as well as remove waste products there is no circulatory system per se in cnidarians. read more