Suppose you are growing the rushing fireball in liquid culture at optimal growth temperature. You put a sample of your culture in a spectrophotometer, and its optical density (OD) is 0.8. The OD of the culture was approximately 0.2

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

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.

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher