Association of cattle egret and grazing cattle represents

Options

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

Answer

To solve the question regarding the association of cattle egret and grazing cattle, we will analyze the different types of biological interactions and determine which one applies to this specific case.

### Step-by-Step Solution:

1. **Understand the Types of Interactions**:
- **Amensalism**: This interaction occurs when one species is harmed while the other is unaffected. For example, a large tree shading smaller plants, preventing their growth.
- **Mutualism**: In this interaction, both species benefit from the relationship. An example is bees pollinating flowers while obtaining nectar.
- **Photocooperation**: This is a form of mutualism where species benefit from each other but do not rely on each other for survival.
- **Commensalism**: This is the interaction where one species benefits and the other is neither helped nor harmed.

2. **Analyze the Relationship**:
- In the case of cattle egret and grazing cattle, the cattle egret benefits by catching insects that are flushed out by the movement of the cattle.
- The cattle, on the other hand, do not gain any benefit from the presence of the egrets, nor are they harmed by them.

3. **Identify the Correct Interaction**:
- Since the cattle egret benefits from the association while the cattle are unaffected, this relationship is best described as **commensalism**.

4. **Conclusion**:
- Therefore, the association of cattle egret and grazing cattle represents **commensalism**.

### Final Answer:
The association of cattle egret and grazing cattle represents **commensalism**.

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