Explanation:
Aerobic respiration is more efficient than anaerobic respiration because the former produces a net of 34 ATPs while the latter produces a net of 2 ATPs in one cycle. Therefore with enough oxygen supply, most cells with both options opt will utilize aerobic respiration.
However, occasionally, the cell's energy demands are usually higher than the oxygen supply (such as during an athlete's short fast sprint), hence, in this case, the cells shift to anaerobic respiration to power the cell activities.
Anaerobic respiration evolved first because the first cells had to live in earth whose atmosphere was mainly carbon dioxide and methane. However after the Great Oxygenation event, organisms evolved to utilize oxygen in cellular respiration.
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Answer:
Parasitists have to the body's immune system to establish parasitism, in addition to having to deal with the damage it does to the host organism.
Explanation:
Parasites are organisms that associate with living beings in an unequal relationship, where the parasite uses the vital resources of living beings for their survival, generating problems for the host organism.
As biotic environments where parasites can grow, we can mention plants and animals. For parasitism to be established, the parasite must face the immune defense system of these organisms, in addition to having to face the evils that are caused by parasitism, since the parasite needs the host to be alive for it to survive.
Answer:
What Does Ethical Issues Mean? Ethical issues occur when a given decision, scenario or activity creates a conflict with a society's moral principles. ... These conflicts are sometimes legally dangerous, since some of the alternatives to solve the issue might breach a particular law.