A bird and a moth both have wings to fly even though their wings are not the result of sharing a common ancestor. What is this an example of? adaptation
vestigial structures
homologous structures
analogous structures

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.

if someone had the list of traits you provided