A...........is a network formed by interconnection of many food chains to provide alternative pathways of food availability .

Explanation

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for a term that describes a network formed by the interconnection of many food chains.

2. **Defining Food Chains**: A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

3. **Identifying Interconnection**: When multiple food chains are interconnected, they form a more complex network. This interconnection allows for multiple pathways of energy flow and nutrient cycling.

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