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

Fact 2: Neurotransmitters are chemical messengers in the brain.

Given the two facts above, answer the question "Neurotransmitters and hormones are what in their function?" with the following options: 
- cells
 - organic
 - inorganic
 - complex
 - Vibrates
 - warm
 - properties
 - similar


 

        similar 