The main function of each gland in an endocrine system is which of the following?

Question

Quizplus · Accepted Answer

The endocrine glands, although widely distributed, are grouped together as a system because the main function of each gland is the production of hormones.
The respiratory system is responsible for bringing oxygen into the body and expelling out carbon dioxide.
The circulatory system is responsible for circulation of blood. 
The muscular system is responsible for the movement of the body.

The Main Function of Each Gland in an Endocrine System