Navigate

In which animal is nerve cell present but brain absent

In which animal is nerve cell present but brain absent?

Options

(a) Sponge
(b) Earthworm
(c) Cockroach
(d) Hydra

Correct Answer:

Hydra

Explanation:

A primitive type of nervous system,without brain is found in the form of intra epidernal nerve net.However,there is no brain in Hydra to coordinate the response.

AIPMT2002
admin:

Related Questions

  1. The basis of grouping of living organisms into eukaryotes and prokaryotes
  2. Collagen fibres of connective tissue are
  3. The chance of elimination of genes from a small population is an example of
  4. Mating between two individuals differing in genotype to produce genetic variation
  5. Phototrophic movement is caused due to