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Biology, 21.06.2019 17:50
Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting
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Biology, 21.06.2019 21:00
If scientists are wrong about earth's age based on radioactive material and the decay rates are really much faster, how would nuclear power plants be affected?
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Biology, 22.06.2019 00:20
The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an
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How does blood pressure affect blood flow?...
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