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During vigorous exercise, oxygen debt develops because:

During vigorous exercise, oxygen debt develops because:
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Muscles receive excess oxygen
  • B Anaerobic respiration occurs temporarily
  • C Alveoli collapse permanently
  • D Breathing stops completely
Correct Answer: Option B
Explanation:
Intense exercise may cause muscles to respire anaerobically due to insufficient oxygen supply, leading to oxygen debt and lactic acid accumulation.

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