Question

Which animal has no brain and heart?

Answer 1

Heart and Brain:

1. The heart is responsible for pumping blood and transferring oxygen-carrying blood to the body.
2. A brain is a controlling unit of the body, required for the proper functioning of the body.
3. Not all animals have a well-developed type of heart or brain, but in undeveloped or primitive forms, they do have these important organs.
4. Jellyfish is an aquatic animal that does not contain a brain, heart, or lungs.
5. It does not contain the brain but perceives responses from its tentacles.
6. They have a mesh of nerve cells all over the body.
7. Hence they are sensitive to touch.
8. The respiration in such animals is carried through their skin and takes oxygen inside.
9. Jellyfish have no brain and heart.