Question

Select the correct option

The chief respiratory organ of human being is the

• A. Lungs
• B. Skin
• C. Gills
• D. Spiracles

Answer 1

The correct option is A

Lungs

The correct option is A.

Explanation of correct answer:

1. The chief organ of the respiratory system is the lungs.
2. The oxygen that is received in the lungs is then distributed to all parts of the body through the blood.

Explanation of incorrect answer:

Option B:

The respiratory gases diffuse through the surface of the skin in some animals. e.g. Earthworm.

Option C:

The gills are the respiratory organ that is found in many aquatic animals. e.g.Fish

Option D:

A spiracle is a respiratory organ in insects such as cockroaches. It is an external opening present on the sides of the abdomen of the body.

Final answer: The chief respiratory organ of the human being is the Lungs.