Why is it important that the phospholipid bilayer be both hydrophobic and hydrophilic? a) they are not important b) they maintain balance in the cell c) to allow cellular bonding

B) They maintain balance in the cell.

That mix of hydrophobic and hydrophilic, in other words, the mix of repelling and attraction maintains the aqueous balance in a cell and it's exterior.

Hope it helped,

BioTeacher101

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.

the answer is:

carbon dioxide