Question

The __________________ is a network of cells and fibers that send messages to different parts of the body.

A.
endocrine system

B.
nervous system

C.
skeletal system

D.
muscular system

Answer 1

Answer:

Nervous System

Explanation:

By the way this is Biology not Physics!!!

Hope that I helped you!

Answer 2

Answer:

B. Nervous system

Explanation: