Membrane phospholipids often have "kinks" in their tails caused by the presence of a single rather than a double bond between carbons. have hydrophilic tails that face outward and are exposed to water. remain fluid because they are tightly packed against one another. have hydrophobic heads that face the center of the membrane and are shielded from water. none of the choices are correct.

the correct answer is(the type of energy described here is potential energy.)

explanation: now if the person holding the bow and arrow has now let go. the arrow shoots forward toward its target. the   type of energy then becomes

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.