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All rivers have a starting point where water begins its flow. This source is called a headwater. The headwater usually come from rainfall or snowmelt in mountains.
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Albumin is a protein made by your liver. Albumin helps keep fluid in your bloodstream so it doesn't leak into other tissues.
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The cell cycle is the events that take place in a cell as it grows and divides. A eukaryotic cell replicates and divides during the cell cycle. (but I don't know if that's the answer you are looking for)
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I hope a chick, but i'm guessing it's a dude. lol
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