Zoology · 2015
NEET 2015 · 3 May · Code E · Q149
When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe?
When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe ?
Official answer
(2)
rising $\displaystyle \mathrm{CO}_2$ concentration
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NEET (UG) 2015 Zoology question, with the answer from NTA’s final answer key. Where our answers come from.