List three main biotic components.

Explanation

**Step-by-Step Solution:**

1. **Understand Biotic Components**: Biotic components are the living parts of an ecosystem. They include all organisms that interact with each other and their environment.

2. **Identify the Three Main Biotic Components**:
- **Producers**: These are organisms that can produce their own food through photosynthesis. The most common examples are plants.
- **Consumers**: These organisms cannot produce their own food and rely on other organisms for nutrition. This group includes animals that eat plants (herbivores) and other animals (carnivores).
- **Decomposers**: These are organisms that break down dead organic material, returning nutrients to the soil. Examples include microorganisms and saprophytes.
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