Saprobic nutrition is seen in

Options

A. Hydra
B. Fungus
C. Tuenia
D. Man

Answer

### Step-by-Step Solution:

1. **Understanding Saprobic Nutrition**:
- Saprobic nutrition refers to the mode of nutrition where organisms obtain their food by decomposing dead and decaying organic matter. These organisms play a crucial role in the ecosystem by recycling nutrients.

2. **Identifying Organisms**:
- We need to analyze the given options to identify which organism is known for saprobic nutrition.
- The options provided are:
- A. Hydra
- B. Fungus
- C. Taenia
- D. Man

3. **Analyzing Each Option**:
- **A. Hydra**: Hydra is a carnivorous organism that feeds on small aquatic animals. It does not obtain nutrients from decaying matter.
- **B. Fungus**: Fungi are known to be decomposers. They break down dead and decaying organic material, thus obtaining nutrients through saprobic nutrition.
- **C. Taenia**: Taenia is a parasitic flatworm (tapeworm) that derives its nutrients from living hosts, not from decaying matter.
- **D. Man**: Humans are omnivores and do not rely on decomposing matter for nutrition.

4. **Conclusion**:
- Based on the analysis, the organism that exhibits saprobic nutrition is **B. Fungus**.

### Final Answer:
**B. Fungus**