Which part of a sperm cell is responsible for providing the cell's energy?

a.
round head

b.
mitochondria section

c.
flagellum

d.
cell wall

B. The mitochondria section stores all the cells energy

not sure but try c two haploid cells

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.