Exclusive holozoic nutrition is seen in

Options

A. Housefly
B. Spider
C. Man
D. Shark

Answer

**Step-by-Step Solution:**

1. **Understanding Holozoic Nutrition**:
- Holozoic nutrition is a type of nutrition where organisms ingest complex food materials, which are then digested and absorbed. This process involves several stages: ingestion, digestion, absorption, and assimilation.

2. **Identifying the Organisms**:
- The question provides four options: Housefly, Spider, Man, and Shark. We need to determine which of these organisms exhibits exclusive holozoic nutrition.

3. **Analyzing Each Option**:
- **Housefly**: Houseflies do not exclusively rely on holozoic nutrition. They feed on liquid substances and have a different feeding mechanism.
- **Spider**: Spiders also do not exclusively exhibit holozoic nutrition. They typically digest their prey externally and then consume the liquefied nutrients.
- **Man**: Humans (man) are classic examples of organisms that exhibit exclusive holozoic nutrition. We ingest complex food, which is then digested and absorbed.
- **Shark**: Sharks are carnivorous and do consume complex food, but they do not exclusively rely on holozoic nutrition as they may also exhibit other forms of feeding.

4. **Conclusion**:
- Based on the analysis, the only organism that exhibits exclusive holozoic nutrition is **Man**. Therefore, the correct answer is option number 3.

**Final Answer**: Man (Option 3)

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