Ommatidia serve the purpose of photoreception in

Options

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

Answer

To solve the question "Ommatidia serve the purpose of photoreception in", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ommatidia**:
- Ommatidia are the individual units that make up the compound eyes of certain animals. Each ommatidium contains photoreceptor cells that are sensitive to light.

2. **Identifying the Organism Group**:
- Ommatidia are primarily found in the eyes of arthropods, which include insects, crustaceans, and some other related groups.

3. **Function of Ommatidia**:
- The primary function of ommatidia is photoreception, which means they help in detecting light and forming images. This type of vision is often referred to as "mosaic vision" because each ommatidium contributes to a small part of the overall image.

4. **Examples of Organisms with Ommatidia**:
- Common examples of organisms that possess ommatidia include insects like cockroaches, bees, and flies. These organisms belong to the phylum Arthropoda.

5. **Analyzing the Options**:
- The question likely provides multiple options (e.g., cockroaches, amphibians, humans, plants). From the understanding that ommatidia are found in arthropods, we can deduce that the correct answer is the organism that belongs to this group.

6. **Conclusion**:
- Based on the information, the correct answer to the question is that ommatidia serve the purpose of photoreception in **cockroaches** (which are insects belonging to the arthropod group).

### Final Answer:
Ommatidia serve the purpose of photoreception in **cockroaches**.

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