Cells without the correct antigen proteins are foreign and are tagged with for destruction.
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Biology, 21.06.2019 22:30
Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.
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Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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A(n) is a molecule influences the way that a molecule reacts.
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When wind creates a sand dune, the sheltered side of the dune is less steeply sloped than the windward side has the same incline as the windward side is more steeply sloped than the windward side
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