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Biology, 22.06.2019 11:00
Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.
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Biology, 22.06.2019 11:30
Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
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Biology, 22.06.2019 12:00
Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?
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How can scientists practice ethical lab behavior...
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