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When ash and dust begin to settle on the ground, they eventually become compacted by
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Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i
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All other things being equal the size of a population will decrease if
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In evolution, describes the appearance of new species from ancestors. species which share ancestors...
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