During rest,the metabolic needs of the body are at their minimum. Which of the following is indicative of this situation?

Describe the steps of respiration in short.

In high-altitude regions,the $R.B.C.$ count in humans will . . . . . . .

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

Find out the false statement.

$I.$ $pO_2$ is the major factor which affects the binding of $CO_2$ with haemoglobin.
$II.$ $pCO_2$ is low and $pO_2$ is high in tissues.
$III.$ $RBC$ contains a very high concentration of carbonic anhydrase.
$IV.$ Every $100 \; mL$ of deoxygenated blood delivers approximately $4 \; mL$ of $CO_2$ to alveoli.
Select the combination of right statements.