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Why was it difficult ot use dna as evidence in a crime before pcr was invented
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The influenza virus cause the flu, but not other diseases. why?
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The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?
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Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?
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Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
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Why was it difficult ot use dna as evidence in a crime before pcr was invented...
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