I will give brainiest to who answer please fast

the cell theory states that all living things including animals, as well as plants, are made of cells.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

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.