Question

Do Flatworms have a closed circulatory system?

Answer 1

Closed circulatory system:

1. In closed circulatory system blood is carried throughout the body through vessels in this system.
2. Vertebrates and a few invertebrates, such as earthworms, have a closed circulatory system.
3. No, the circulatory system of flatworms is not closed.
4. Flatworms are not able to circulate since they lack a circulatory system.
5. Because of the way molecules operate, animals without a circulatory system have a restricted ability to carry oxygen and nutrients to their bodily cells.
6. They are devoid of lymph nodes, veins, and arteries.
7. Flatworms do not require a particular circulatory system as humans do.
8. As the flatworms do not breathe through their lungs and so do not require oxygen to be transported throughout the body.