Some examples of homeostasis include:
- Blood glucose concentration regulation
- Blood water potential
- Temperature regulation
Species have similar characteristics, but they are rarely, if not never, identical; the difference between them is variation!
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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.
domain bacteria; kingdom eubacteria
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