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What respiratory system changes occur when someone quits smoking?
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15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.
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Creating new things to solve problems and improve life depends on the close interaction of which two fields?
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How does the fossil record provide evidence that the modern whale evolved from the anthracotheres? a) the modern whale looks like their ancestor the anthracotheres. b) the modern whale has all of the same structures as their ancestor. c) there is not enough evidence to suggest the the modern whale evolved from the anthracotheres. d) the anthracotheres has a structure that is still present in the modern whale, but is no longer of use to the modern whale.
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What respiratory system changes occur when someone quits smoking?...
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