If a researcher finds that there is a correlation between secondhand smoke and children's asthma, he knows for sure that a. secondhand smoke does not cause children's asthma b. children exposed to smoke in utero often get asthma c. asthma and secondhand smoke have some connection d. secondhand smoke causes children's asthma
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Biology, 21.06.2019 19:30
Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.
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What best describes the dropping height of a ball that bounces back up to a height of 45 cm
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Ture or false evidence for evolution includes millions of fossils
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Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
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If a researcher finds that there is a correlation between secondhand smoke and children's asthma, he...
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