Question

Which one neutralises humic acid present in humus in the body of Earthworm?

• A. Intestinal caecum
• B. Typhlosole
• C. Gizzard
• D. Calciferous glands

Answer 1

The correct option is D Calciferous glands

In earthworm, a small narrow tube, oesophagus (5-7 segments), continues into a muscular gizzard (8-9 segments). It helps in grinding the soil particles and decaying leaves, etc. The stomach extends from 9-14 segments.

The food of the earthworm is decaying leaves and organic matter mixed with soil.

Calciferous glands, present in the stomach, neutralize the humic acid present in humus.

So the correct answer is 'Calciferous glands'.