Pollination in Ophrys ( a mediterranean orchid ) occurs by

Options

A. Insect through click mechanism
B. Insect through trap door mechanism
C. Insect through pseudocopulation mechanism
D. Insect through lever mechanism

Answer

To determine how pollination occurs in Ophrys, a Mediterranean orchid, we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Pollination Mechanisms**:
- Pollination can occur through various mechanisms, and we need to evaluate each option provided.

2. **Option 1: Insect through Click Mechanism**:
- The click mechanism involves the flight muscles of insects, which are not directly attached to their wings. This mechanism does not apply to Ophrys orchids.
- **Conclusion**: This option is incorrect.

3. **Option 2: Insect through Trap Door Mechanism**:
- The trap door mechanism is associated with Ficus carica, where a cup cavity with pores (ostea) is involved in pollination. This mechanism is not found in Ophrys.
- **Conclusion**: This option is incorrect.

4. **Option 3: Insect through Pseudocopulation Mechanism**:
- Pseudocopulation involves flowers that mimic the appearance and pheromones of female insects, stimulating male insects to attempt mating with them. This mechanism is specifically observed in Ophrys orchids.
- **Conclusion**: This option is correct.

5. **Option 4: Insect through Lever Mechanism**:
- The lever mechanism involves one fertile stamen and one sterile stamen, which assists in pollen transfer. This mechanism is not associated with Ophrys orchids.
- **Conclusion**: This option is incorrect.

### Final Answer:
Pollination in Ophrys (a Mediterranean orchid) occurs by **insect through pseudocopulation mechanism**.

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