Question

What is unusual about endocannabinoids or endogenous cannabinoids? A. They are retrograde messengers by which postsynaptic neurons act on presynaptic terminals. B. They float in the membrane like adenylyl cyclase. C. They contain a chemical structure called catechol. D. They play an important role in the brain systems that regulate mood.

Answer 1

D

Explanation: They play an important role in the brain systems that regulate mood.