What is a detritus food chain made up of ? How do they meet their energy and nutritional requirements?

Explanation

### Step-by-Step Solution:

1. **Definition of Detritus Food Chain**: A detritus food chain is a type of food chain that begins with dead organic matter. It is primarily composed of decomposers and detritivores.

2. **Components of the Detritus Food Chain**:
- **Decomposers**: These are organisms, such as bacteria and fungi, that break down dead organic material.
- **Dead Organic Matter**: This includes dead plants, dead animals, remains, and fecal material.

...