What is cephalization?

Cephalization are:

• - 1. The gradual evolutionary concentration in the brain of important functions of the nervous system
• - 2. The concentration of growth tendency at the anterior end of the embryo.

Cephalization is an evolutionary trend in which, over many generations, the mouth, sense organs, and nerve ganglia become concentrated at the front end of an animal, producing a head region. This is associated with movement and bilateral symmetry,…