Nerve net
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A nerve net is primitive nervous system consisting of interconnected neurons lacking a brain or any form of cephalization. While organisms with bilateral body symmetry are normally associated with a c
Nettle jelly
Hydra (genus)
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Hydra is a genus of small freshwater hydrozoans in the phylum Cnidaria. They are solitary, carnivorous jellyfish-like animals, native to the temperate and tropical regions. The genus was named by Linn
Nerve net
…to its environment, it does not enable the organism to detect the source of the stimulus. For this reason, simple animals with nerve nets, such as Hydra, will typically produce the same motor output in response to contact with a stimulus, regardless of the point of contact. The anatomy and positioning…
Hydra Foto
Hydra attached to a substrate