Question

Differentiate between primitive and advanced nervous system?

Answer 1

in primitive nervous system brain is not well developed while in modern it is well developed

Answer 2

primitive organism:

a group of organisms with simpler body structure and ancient body design that have not changed much over a period of time or with evolution

eg- amoeba

advanced organisms:

a group of organisms with complex body design, that have changed over evolutionary time.

eg- starfish

Hope it helps:)