In which animal, nerve cell is present b...

In which animal, nerve cell is present but brain is absent ?

A

Sponge

B

Honeybee

C

Cockroach

D

Hydra

Text Solution

Verified by Experts

The correct Answer is:

D

Hydra possesses primitive type of nervous system.All neurons are similar and joined with one another to form a nerve net but brain is absent.

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Knowledge Check

In which animal nerve cell is present but the brain is absent?

A

Sponge

B

Earthworm

C

Cockroach

D

Hydra

Which cranial nerve is present in man but absent in frog ?

A

Glossopharyngeal

B

Hypoglossal

C

Olfactory

D

Optic

In which phylum nerve cells are found but nerves are absent

A

Porifera

B

Coelenterata

C

Platyhelminthes

D

Nemathelminthes

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