Answer:
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Option B
Middle colic arteries is the most likely additional source of blood to the descending colon
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Explanation:</u></h3>
The middle colic artery is a section of the superior mesenteric artery. Middle Colic provides the transverse colon, has a branch that runs to the right colon and branch that persists to the left colon that catches up with the left colic artery and proceeds as the marginal artery to provide the descending colon.
The left gastroepiploic artery is one of the sections of the splenic artery. Sigmoid- branch off IMA so barred in this case Splenic- proceeds of the celiac trunk, branches accumulation spleen & pancreas Superior Rectal- a sequence of IMA not possible to participate in this case
In terms of parasites vs hosts, it is an organism in which the parasite resides and normally feeds + reproduces.
Answer:
strengths:The cell model shows all the process involved, and it's easy to understand, even if a person isn't familiar with the process
weaknesses: it doesnt show organelle or rna
