Abnormal levels of are linked to depression and eating disorders.
a. dopamine
b. acetylcholine
c. serotonin
d. endorphins

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.

How could yo improve public knowledge about obesity at your school