Which of the following is a respiratory gas?

At high altitudes,the number of red blood cells in humans:

What does abdominal breathing indicate?

People who have migrated from the plains to an area near Rohtang Pass six months ago will exhibit which of the following characteristics?

For completion of the respiration process,write the given steps in sequential manner.
$(a)$ Diffusion of gases ($O_2$ and $CO_2$) across alveolar membrane.
$(b)$ Transport of gases by blood.
$(c)$ Utilisation of $O_2$ by the cells for catabolic reactions and resultant release of $CO_2$.
$(d)$ Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out.
$(e)$ Diffusion of $O_2$ and $CO_2$ between blood and tissues.

Rate of breathing in a newborn is about . . . . . . times per minute.