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4 May 2018
1.22. BIO How many times does a human heart beat during a person's lifetime? How many gallons of blood does it pump? (Estimate that the heart pumps 50 cm of blood with each beat.)
1.22. BIO How many times does a human heart beat during a person's lifetime? How many gallons of blood does it pump? (Estimate that the heart pumps 50 cm of blood with each beat.)
2
answers
0
watching
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Reid WolffLv2
6 May 2018
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