if you were to watch an individual neurotransmitter molecule just after it was released what would happen to it

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

i need an image of the diagram

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

i think the answer is a.keratin is the pigment responsible for skin color.