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djverab [1.8K]
3 years ago
15

When you assess your cardiorespiratory endurance, you’re actually measuring how efficiently your system is using A. glucose. B.

oxygen. C. blood. D. muscle.
Health
2 answers:
kramer3 years ago
6 0
The correct answer is B! :)
Delicious77 [7]3 years ago
6 0
Endurance is how fast not how strong so the answer would be oxygen!
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