Question

Why do we need chemical coordination along with nervous coordination?

Answer 1

Nervous coordination....by itselfis insufficient to communicate informations within the body. Due to certain limitations of the use of of electrical impulses, CC is also required.
and is also necessary for the long term effect like hormonal control....

may b usefull✌✌

Answer 2

the fact is if there is no chemical cordination then it would difficult for molecules to understand message of other chemicals though at Target site where a particular chemical shows effect also knows chemical strength of target cells thus it neccasery for any of the following part of brain to show chemical coordinatoin.