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

What does abdominal breathing indicate?

What is the respiratory rate in a rabbit?

Which of the following plants possesses sunken stomata?

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

Statement-$I$: The anatomical setup of the lungs in the thorax is such that any change in the volume of the thoracic cavity will be reflected in the lung cavity.
Statement-$II$: The volume of air remaining in the lungs even after a forcible expiration is called residual volume.