What is heterotrophic succession ?

Explanation

**Step-by-Step Solution:**

1. **Definition of Heterotrophic Succession**: Heterotrophic succession refers to a type of ecological succession where the primary organisms involved are heterotrophs. These organisms depend on other organisms for their food, as they cannot produce their own.

2. **Role of Autotrophs**: In heterotrophic succession, there is an early and continued dominance of autotrophs. Autotrophs are organisms that can produce their own food through processes like photosynthesis (e.g., plants, algae). This dominance is crucial because heterotrophs rely on autotrophs for their energy and nutrients.

3. **Importance of Autotrophs in Ecosystems**: The presence of autotrophs is essential in heterotrophic succession because they form the base of the food chain. Heterotrophs, such as animals and decomposers, feed on these autotrophs, thus supporting the entire ecosystem.

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