I need help! 1.___ Convergent
2.___Divergent
3.___Extinction
4.___Gene flow
5.___Genetic Drift
6.___Mass extinction
7.___Mutation
8.___Non-random Mating
9.___Parallel
10.___Punctuated Equilibrium
11.___Recombination
12.___Stasis

idek what the question is

Explanation:

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.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .