Answer the following questions briefly and to the point:
What do detritus food chains begin with?

Explanation

**Step-by-Step Solution:**

1. **Understanding Detritus Food Chains**: Detritus food chains are a type of food chain that begins with dead organic matter.

2. **Identifying the Starting Point**: The starting point of detritus food chains is dead organic matter, which is also referred to as detritus.

3. **Role of Decomposers**: Decomposers, such as fungi and bacteria, play a crucial role in these food chains. They feed on the dead organic matter.

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