Epiphytes growing on trees is an example of

Options

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

Answer

### Step-by-Step Solution

1. **Understanding the Question**: The question asks about the relationship of epiphytes growing on trees. We need to identify the type of ecological relationship that exists between epiphytes and the trees they grow on.

2. **Defining Epiphytes**: Epiphytes are plants that grow on other plants (like trees) but do not derive nutrients from them. Instead, they use the host plant for physical support.

3. **Identifying the Relationship**: We need to analyze the options provided:
- **Mutualism**: A relationship where both organisms benefit. This is not the case here since the tree is not benefiting from the epiphyte.
- **Commensalism**: A relationship where one organism benefits while the other is neither helped nor harmed. This fits our scenario as the epiphyte benefits from the tree for support, while the tree remains unaffected.
- **Amensalism**: A relationship where one organism is harmed and the other is unaffected. This does not apply here since the tree is not harmed.
- **Parasitism**: A relationship where one organism benefits at the expense of the other. This is not applicable as the epiphyte does not harm the tree.

4. **Conclusion**: Based on the definitions and analysis, the correct answer is **commensalism**. The epiphyte (like an orchid) benefits from growing on the tree (like a mango tree), while the tree is unaffected.

### Final Answer
The correct answer is **commensalism**.