Round worms in the intestine of human beings are belonging to

Options

A. trophic level -1
B. trophic level -2
C. trophic level -3
D. trophic level -5

Answer

To solve the question regarding the classification of roundworms found in the intestines of humans, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Organism**: Roundworms that inhabit the intestines of humans are classified as parasites. This means they derive their nutrition from their host, which in this case is the human being.

2. **Identify the Trophic Level**: Trophic levels categorize organisms based on their position in the food chain. The levels are generally divided as follows:
- **Trophic Level 1**: Producers (plants and algae) that create their own food through photosynthesis.
- **Trophic Level 2**: Primary consumers (herbivores) that eat producers.
- **Trophic Level 3**: Secondary consumers (carnivores) that eat primary consumers.
- **Trophic Level 4 and above**: Higher-level carnivores and apex predators.

3. **Determine the Role of Roundworms**: Since roundworms are parasites that feed on the nutrients in the intestines of humans, they can be categorized as secondary consumers. They do not produce their own food and are not primary consumers.

4. **Conclusion**: Based on the classification of trophic levels, roundworms belong to **Trophic Level 3** because they are secondary consumers that derive their nutrition from a host.

5. **Select the Correct Option**: Among the given options, the correct answer is **Option C: Trophic Level 3**.

### Final Answer:
Roundworms in the intestine of human beings belong to **Trophic Level 3**.