Which of the following organisms convert plant matter into animal matter ?

Options

A. Earthworm
B. Goat
C. Termites
D. Frog

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which organisms convert plant matter into animal matter. This involves identifying the role of certain organisms in the ecosystem, particularly in the decomposition process.

2. **Identifying Plant Matter**: Plant matter refers to any part of a plant, such as leaves, stems, or roots. In this context, a dry leaf is used as an example of plant matter.

3. **Understanding the Role of Detritivores**: Detritivores are organisms that feed on dead organic matter (detritus). They play a crucial role in breaking down this matter into smaller particles, which can then be utilized by other organisms in the ecosystem.

4. **Example of a Detritivore**: The earthworm is a well-known example of a detritivore. It consumes dead plant matter (like the dry leaf) and breaks it down into smaller fragments through its digestive process.

5. **Conversion Process**: When the earthworm consumes the dry leaf, it breaks it down and eventually excretes it as feces. This feces contains the nutrients from the leaf, effectively converting the plant matter into animal matter.

6. **Conclusion**: Based on the above points, the organism that converts plant matter into animal matter is the earthworm.

**Final Answer**: The correct answer is the earthworm.

---