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Pathogens are physically forced out of the respiratory tract when a person coughs
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Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?
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Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above
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Why should organisms reproduce more offspring than will survive? select all that apply.
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Pathogens are physically forced out of the respiratory tract when a person coughs...
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