Question

Choose the most appropriate answer from the following:
(a) Respiration can be best defined as:
(i) the taking in of oxygen by relaxation of the diaphragm and contraction of the
muscles.
(ii) the oxidative breakdown of food in living cells to release energy.
(in carbon dioxide + water + glucose + oxygen.
(iv) the burning of glucose by the body.​

Answer 1

Answer:

(i) . the taking in of oxygen by relaxation of the diaphragm and contraction of the

muscles.

Explanation:

Respiration is the process by which living things produce energy from food. Respiration usually needs oxygen.