The cyanobacteria changed the composition of the earth’s atmosphere by evolving oxygen in what is referred to as the Great Oxygenation Event. This also allowed the ozone to be formed and block off most of the UV rays that are destructive to genetic material. Life was, therefore, also able to exist on land other than in water.
In the science world today, both the natural regeneration and stem cell therapy can be used to generate new cells and both processes have thier advantages and disadvantages. The following are the advantages of natural regeneration over stem cell transplants:
1. Natural regeneration is cheaper compares to stem cell transplant.
2. The process of natural regeneration is safe and does not involve the fear of unknown, long time effects like that of stem cell transplant.
3. Naturally regenerated cells can not be rejected by the patient's body but a stem cell transplanted cell can be rejected by the patient's body.
D mantle
The mantle swells up in response to the plate moving
The reason that this question is being questioned by the nurse to the patient is because of the reason that the nurse wants to know the quality of pain that the patient is exhibiting in which the nurse would likely ask the patient of how much pain she or he exhibits from the scale 0-10.
Answer:
Powerhouse of the cell, creates ATP (energy for the cell).
Explanation:
