Question

Earthworm respires by

• A. Clitellum
• B. Ctenidia
• C. Moist skin
• D. Typhlosole

Answer 1

The correct option is C Moist skin

Respiration takes place through the moist surface of the body of an earthworm. Moist surface aids in easy diffusion of gases. Haemoglobin is the respiratory pigment that helps in transportation of oxygen to different parts of the body.

Clitellum is the glandular and non-segmented region in the body of an earthworm and is helpful in copulation.

Ctenidia is the respiratory organ present in molluscs and some insects.

Typhlosole is a part of the digestive system of an earthworm and increases the absorption and digestion region in the alimentary system.

So, the correct answer is option C.