Answer:
the claim, evidence, and rationale
Explanation:
Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).
Overpopulation. Our population is rising fast and it is not very stoppable.
The oxygen distribution would be uneven and and there will be a decrease of oxygen level throughout the body if arteries began to clog