Electrolysis of water is the decomposition of water into oxygen and hydrogen gas. It is done by passing an electric current through the water.
A, it is a self-defence mechanism, where they only do it if they have to.
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They range in size from microscopic plankton up to forms a few meters long.
Answer:
Natural Selection is a process where the weaker species usually dies first.
I would go with letter A.
If there was no competition there would be an overpopulation. If there was limited food its risky and they could possibly be extinct.
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Explanation:
Glycolysis is the first step in the respiration pathway. The amount of oxygen available after glycolysis determines whether the rest of the reaction is aerobic (Krebs Cycle and Electron Transport Chain) or anaerobic (Fermentation).