To copy (aka, clone) a human DNA sequence to be placed into a bacterial plasmid DNA, human DNA must be cut with restriction enzyme A then it can be joined to

Explanation:

Cloning is to make a genetically exact copy of it. A gene or other small piece of DNA is mostly cloned.

DNA cloning is the process of making multiple copies of a particular piece of DNA that are identical.

The DNA fragment of the human is first inserted into a plasmid which is a circular form of Dna. Enzymes “cut and paste” the DNA into the plasmid and it produces a molecule of recombinant DNA. The plasmid and gene fragment are joined together to produce a gene containing plasmid which is a recombinant DNA.

The recombinant plasmid is then introduced or inserted into the bacteria, the bacteria that carries the plasmid are selected and grown. As the bacteria reproduce, they replicate the plasmid and it is also passed to their offspring.

materials water oxygen those are the things i can think of in this moment.

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.