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The amount of oxygen required to remove the lactic acid, and replace the body's reserves of oxygen, is called the oxygen debt. When someone who has been exercising pays back an oxygen debt, it can take from a few hours for normal exercise, to several days after a marathon.
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the suns on the other side of the earth at the time
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Nutrients enter a cell up the concentration gradient by the process of active transport.
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a glaciers way combined with its gradual movement can drastically are we shaped the landscape over hundreds or even thousands of years the icy roads the land surface and carries a broken rocks and soil temperatures far from their original places