Breathing and Exchange of GasesHard

Question

If the level of carboxyhaemoglobin in blood reaches upto .... the functioning of central nervous system is severely affected which results in death.

Options

A. 1 to 2%
B.0.20 to 0.30 %
C.0.30 to 0.40 %
D.0.1 to 5%

Solution

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