Fact 1: Hormones are chemical messengers that control many body functions.

Fact 2: Steroid hormones are the longest acting hormones.

Given the two facts above, answer the question "what are chemical messengers that control many body functions?" with the following options: 
- deltas
 - bioaerosols
 - acetic acid
 - sweating
 - veins
 - human
 - oxygen
 - steroids


 

        steroids 