Which system in the body is made up of glands that act as a chemical broadcasting system? A. endocrine system
B. digestive system

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

The cluster of developing cells from conception until birth is called an