Role of calciferous glands in stomach of earthworm is to

Options

A. Neutralise the humic acid in the humus
B. Produce HCI
C. Emulsify fats
D. Increase absorptive area

Answer

**Step-by-Step Solution:**

1. **Understanding the Earthworm's Digestive System:**
- The earthworm has a specialized digestive system that includes a gizzard and a stomach. The gizzard is responsible for grinding food, while the stomach is where further digestion occurs.

2. **Identifying the Location of the Stomach:**
- The stomach of the earthworm is located between the 9th and 14th segments of its body. It is a tubular structure that is thin-walled and highly vascularized, meaning it has a rich blood supply.

3. **Role of Calciferous Glands:**
- Within the stomach, there are calciferous glands. These glands play a crucial role in the digestive process.

4. **Function of Calciferous Glands:**
- The primary function of the calciferous glands is to neutralize acids present in the food. Specifically, they help neutralize humic acid found in humus, which is a component of the soil that earthworms consume.

5. **Conclusion:**
- Therefore, the role of the calciferous glands in the stomach of the earthworm is to neutralize the humic acid in the humus.

**Final Answer:**
The role of calciferous glands in the stomach of the earthworm is to neutralize the humic acid in the humus.

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