Relation between fig tree and wasp species:

Options

A. Commensalism
B. Mutualism
C. Parasitism
D. Amensalism

Answer

### Step-by-Step Solution

1. **Understanding the Relationship**: The relationship between the fig tree and the wasp species is a classic example of a symbiotic interaction in ecology.

2. **Identifying the Type of Interaction**: The options given are commensalism, mutualism, parasitism, and amensalism. We need to determine which of these accurately describes the relationship.

3. **Analyzing the Benefits**:
- **For the Wasp**: The fig tree provides a site for the wasp to lay its eggs (oviposition). This is a safe environment for the wasp's larvae to develop.
- **For the Fig Tree**: The wasp assists in the pollination of the fig tree. When the wasp enters the fig to lay eggs, it also transfers pollen from other fig trees, facilitating fertilization.

4. **Conclusion**: Since both the fig tree and the wasp benefit from this interaction—where the fig tree provides shelter and food for the wasp's larvae, and the wasp aids in the fig tree's pollination—this relationship is classified as **mutualism**.

5. **Eliminating Other Options**:
- **Commensalism**: One species benefits while the other is neither helped nor harmed. This does not apply here.
- **Parasitism**: One species benefits at the expense of the other. This is not the case in the fig-wasp relationship.
- **Amensalism**: One species is harmed while the other is unaffected. This is also not applicable.

6. **Final Answer**: The correct answer is **mutualism**.