Group of inherited muscle-destroying disease where muscles enlarge due to fat and connective tissue deposits, but muscle fibers atrophy

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 would think it's dendrites