Match the following:

Column-$I$	Column-$II$
$1$. $97\%$ of $O_2$ is transported	$p$. Bicarbonate
$2$. $70\%$ of $CO_2$ is transported	$q$. $RBC$
$3$. $100$ $ml$ of oxygenated blood	$r$. $4$ $ml$
$4$. $100$ $ml$ of deoxygenated blood	$s$. $5$ $ml$

The total pulmonary ventilation is related to the metabolic rate of the body as:

Which physiological adaptation occurs in people living at high altitudes to survive in low atmospheric pressure?

Aerobic respiration involves
$I.$ external respiration
$II.$ transport of gases
$III.$ internal respiration
$IV.$ cellular respiration
Choose the correct combination of options for the given statements

After fast running,a man has a fast heartbeat,a slow pulse,and shallow breathing. In such conditions,he has:

In humans, respiration occurs in the following steps. Arrange these steps in the correct order.
$A$. Diffusion of $O_2$ and $CO_2$ between blood and tissues
$B$. Diffusion of $O_2$ and $CO_2$ across alveolar membrane
$C$. Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out
$D$. Cellular respiration
$E$. Transport of gases by the blood