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Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
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Idon’t understand this can someone give me the answer? you
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Biology, 22.06.2019 23:20
Which elements are in the substance that makes up about 60% of the male human body
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Antibodies directed against the capsule provide serotype-specific protection. How does the presence...
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