Biology, asked by ano146, 3 months ago

When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe?

(a) Falling CO2 concentration (b) Rising CO2 and falling O2 concentration

(c) Falling O2 concentration (d) Rising CO₂ concentration

Answers

Answered by vansh2103

0

Answer:

(b) Rising CO2 and falling O2 concentration

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