Results for: nerve-net

Do hydra have nerve tissue?

The hydra has a nervous system characterized by a nerve net. A nerve net is a collection of separate, but "connected" neurons. Neurons are connected by synapse. Communication between neurons can be in both directions at the synapse within a… Full Answer

Do echinoderms have a brain?

They don't technically have a brain. Echinoderms have a simple radial nervous system with a nerve net, like in jellyfish but different. The nerve net has no central brain, although there may be ganglia present.

Does the cniderian have a system?

The phylum Cnidaria encompasses over nine thousand aquatic species. All of these species share common characteristics such as being invertebrates and having no major systems. For example, instead of having a complex nervous system, cnidarians have something called a nerve… Full Answer

Do jellyfish have a heart and a brain?

Jellyfish do not have specialized digestive, osmoregulatory, central nervous, respiratory, or circulatory systems. A jellyfish does not have a brain or central nervous system, but rather has a loose network of nerves, located in the epidermis, which is called a… Full Answer