Which of these show bioluminescence?

Options

A. Pleurobrachia
B. Euplectella
C. Fasciola
D. Funaria

Answer

### Step-by-Step Solution:

1. **Understanding Bioluminescence**:
- Bioluminescence refers to the ability of living organisms to produce and emit light. The term "bio" means living organisms, and "luminescence" refers to the emission of light.

2. **Identifying the Options**:
- The options provided are:
- A) Leurobrachia
- B) Euplectilla
- C) Fasciola
- D) Funeria

3. **Analyzing Each Option**:
- **Leurobrachia**: This is known as sea gooseberry, which is a marine organism. Marine organisms are known to exhibit bioluminescence, making this a potential candidate.
- **Euplectilla**: This is a type of sponge. Sponges do not exhibit bioluminescence, so this option can be eliminated.
- **Fasciola**: This is a type of flatworm (specifically a liver fluke). It is also not known for bioluminescence, so this option can be eliminated.
- **Funeria**: This is a species of moss. Mosses are terrestrial plants and do not exhibit bioluminescence, so this option can be eliminated as well.

4. **Conclusion**:
- After analyzing all the options, the only organism that shows bioluminescence is **Leurobrachia**.

### Final Answer:
The correct answer is **A) Leurobrachia**.

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