BIOLOGY: HOW LIFE WORKS(EBK+AHIEVE)
3rd Edition
ISBN: 9781319230203
Author: Morris
Publisher: MAC HIGHER
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Chapter 33.1, Problem 3SAQ
Summary Introduction
Cephalization is referred to as an evolutionary trend in which, over several generations, the sense organs, mouth, and the nerve ganglia become concentrated at the front end of an animal, which may have generated a head region. This is accompanying with bilateral symmetry and movement, in such a way that the animal possesses a definite head end.
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