Question

Earthworm respires through

• A. gills
• B. lungs
• C. moist skin
• D. spiracles

Answer 1

The correct option is C

moist skin

The correct option is : C

The explanation for the correct option:

1. Earthworms skin is permeable to gases.
2. Earthworms have no lungs, spiracles, or gills, so they must have to breathe via their skin.
3. The moist condition of the skin aids oxygen absorption.
4. Tiny blood capillaries are present below the skin which helps in gas exchange.

The explanation for the incorrect options:

Option A

1. Gill respiration is common in fish.
2. The gill helps in filtering dissolving oxygen in the water.
3. It provides a wide surface area for respiration.

Option B

1. The respiration through the lungs is called pulmonary respiration.
2. It helps in gas exchange between the lungs and the outer environment.
3. Respiration through the lungs has been seen in humans and other mammals.

Option D

1. Insects breathe through spiracles.
2. These are little holes in their body.
3. The spiracles are responsible for the exchange of gases in insects.

Final answer: Earthworm respires through moist skin.