Gerandiol ,an aggregation pheromone is produced by

Options

A. Honeybee
B. Silkmoth
C. Muskdeer
D. Cat

Answer

### Step-by-Step Solution:

1. **Understanding Aggregation Pheromones**:
- Aggregation pheromones are chemical signals that attract individuals of the same species to a specific location. They serve purposes such as feeding and mating.

2. **Identifying Gerandiol**:
- Gerandiol is specifically identified as an aggregation pheromone. It is important to know which organisms produce this particular pheromone.

3. **Analyzing the Options**:
- The options provided are:
- A) Honeybee
- B) Silk moth
- C) Musteo
- D) Cat

4. **Evaluating Each Option**:
- **Honeybee**: Known to produce gerandiol as an aggregation pheromone.
- **Silk Moth**: Produces a different pheromone called bombicol, which is used for attracting mates but is not gerandiol.
- **Musteo**: This group does not produce gerandiol; they are known for releasing must pheromones for communication.
- **Cat**: Cats produce feline facial pheromones (FFP), which are not related to gerandiol.

5. **Conclusion**:
- Based on the analysis, the correct answer is **A) Honeybee**, as it is the organism that produces gerandiol, the aggregation pheromone.

### Final Answer:
Gerandiol, an aggregation pheromone, is produced by **honeybee**.

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