Question

Earthworm lives in the burrows made by boring and swallowing the soil to

• A. Uptake food
• B. Get moisture
• C. Procreation
• D. Avoid opponents

Answer 1

The correct option is B

Get moisture

The correct option is : B

Explanation of correct answer:

1. The earthworm is a reddish-brown terrestrial invertebrate
2. It lives in the upper layers of damp, decomposing soil.
3. It is nocturnal and lives in tunnels dug by burrowing and swallowing the earth throughout the day.
4. They respire through the skin.
5. For integumentary respiration, the skin needs to be moist.
6. Hence they burrow inside the soil.
7. If the earthworm gets dry, it leads to death due to hindrance in respiration.

Explanation of incorrect option:

Option A:

1. Earthworms eat a variety of debris and natural decomposition products found in soil.
2. These are decomposing leaves, bacteria, etc.
3. They are free to graze on grasslands and other flora.
4. They take food by mouth or prostomium.
5. It stores in the gizzard.
6. The majority of digestion occurs in the intestine, and the digested food is absorbed by villi.
7. Then it goes through capillaries into the bloodstream.
8. Through the anus, undigested food and soil are discharged in the form of casts.

Option C:

1. Procreation is the process of reproduction.
2. Earthworm reproduces by both sexual and asexual method.
3. Due to procreation new offspring are formed
4. Procreation is not the reason why earthworm lives in the burrows.

Option D:

1. Earthworms adopt nocturnal habits to avoid their predators.
2. The setae present in their body sense the vibration on the soil.
3. So that it can make itself alert to avoid external enemies.

Final answer: Earthworm lives in the burrows made by boring and swallowing the soil to get moisture.