Which of the following is a plant showing scotoactive opening of stomata?

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

What does abdominal breathing indicate?

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

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

Which of the following steps is $NOT$ involved in the process of respiration?