Prokaryotes are considered by the scientific community as the most ancient life-forms on earth. yet, these primitive cells share many common characteristics with the more modern eukaryotes. however, one significant difference between these two cell types is that only eukaryotes

a. membrane-bound compartments to carry out specialized functions

b. a selectively-permeable cell membrane to maintain homeostasis

c deoxyribonucleic acid (dna) to serve as a template to produce proteins

d. a rigid cell wall which provides structure and support

There are two kingdoms of prokaryotes. These are the bacteria (or eubacteria ) and the archaebacteria (or the Archaea ). The members of these two kingdoms appear similar in shape and appearance, even under the extreme magnification of the electron microscope . the answer is c

do you have a picture?

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.