At what trophic level in the food chain the autotrophs are present.

Options

A. First trophic level
B. Second trophic level
C. Third trophic level
D. Fourth trophic level

Answer

**Step-by-Step Solution:**

1. **Understanding Trophic Levels**: Trophic levels represent the position of an organism in a food chain. The first trophic level consists of producers, the second level consists of primary consumers, the third level consists of secondary consumers, and so on.

2. **Identifying Autotrophs**: Autotrophs are organisms that can produce their own food using inorganic materials. The most common autotrophs are green plants, which use sunlight to perform photosynthesis.

3. **Locating Autotrophs in the Food Chain**: In a food chain, autotrophs are always found at the first trophic level. This is because they are the primary producers that convert solar energy into chemical energy in the form of food.

4. **Conclusion**: Since autotrophs (like green plants) are the producers in the food chain, they are present at the first trophic level.

**Final Answer**: Autotrophs are present at the **first trophic level** in the food chain.

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