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Biology, 14.02.2021 14:00, andrejr0330jr
Many endurance athletes train at high altitudes before a major sporting event. They do this because they think that training at high altitude changes the number of red blood cells in their
body.
Describe an investigation to find out if training at high altitude
does change the number of red blood cells in the human body.
(What are the control variables?)
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Answers: 2
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Many endurance athletes train at high altitudes before a major sporting event. They do this because...
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