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.

D

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

a small town is a good definition for new france in 1750. new france was the area colonized by france in north america. the area is nowadays the city of quebec in canada.

answer; during stalin"s rule, many mothers told their children that he was the greatest thing to ever happen to russia;