Ommatidia serve the purpose of photoreceptioin in

Options

A. Cockroach
B. Frog
C. Humans
D. Sunflower

Answer

**Step-by-Step Solution:**

1. **Understanding Ommatidia**: Ommatidia are specialized sensory organs that function as photoreceptors. They are primarily found in certain animals, particularly in the class Insecta.

2. **Identifying the Organisms**: The question provides four options: copper, prop, human, and sunflower. We need to determine which of these contains ommatidia.

3. **Analyzing the Options**:
- **Copper**: This is a metal and does not have biological structures like ommatidia.
- **Prop**: This term is unclear in this context and does not refer to a living organism.
- **Human**: Humans have simple eyes, not compound eyes made of ommatidia.
- **Sunflower**: This is a plant and does not possess ommatidia.

4. **Correct Identification**: The only option that fits the criteria of having ommatidia is the cockroach, which is a member of the phylum Arthropoda and class Insecta. Cockroaches have compound eyes made up of numerous ommatidia, allowing them to have a mosaic vision.

5. **Conclusion**: Since the other options do not contain ommatidia, the correct answer to the question "Ommatidia serve the purpose of photoreception in" is the cockroach.

**Final Answer**: The correct answer is the cockroach.

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