Mode of respiration in mollusca is : A. Buccal respiration B. Bronchial C. Pulmonary Choose the correct option :

During normal respiration in a mammal, the diaphragm is

During respiration energy is produced in the form of :

When there is a decrease in the concentration of oxygen in the blood, the rate of breathing :

The amount of which of the following components in the air does not change in the process of respiration?

Oxygen transportation in a human body takes place through : 1. Blood 2. Lungs 3. Tissue The correct sequence of transportation is :