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klasskru [66]
3 years ago
9

Tim does a study to determine whether or not cigarette smoking decreases speed in track runners

Biology
1 answer:
leonid [27]3 years ago
5 0
Cigarette smoking decreases speed in track runner, due to the fact that their lungs have black spots. Making it harder for them to breathe. And harder to breathe causing slowing in speed.
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How does the anatomy of the endocrine and integumentary systems correlate with the sense organs? What role does radiology and ut
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6 0
4 years ago
Read 2 more answers
Which term names a solid that forms when two liquids are mixed together
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4 years ago
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7 0
3 years ago
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5 0
3 years ago
How does a mouse reproduce ?
Nina [5.8K]

Answer:

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