The movement of 100 individuals into an area each winter, and the movement of 50 out of the area each spring is an example of

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.

it should be briana that has it to me

i believe it is c: genes for body color and wing size are inherited separately from each parent.