In terrestrial, major large of energy flow through

Options

A. DECK (Detritus Food Chain) than GFC (Grazing Food Chain)
B. GFC than DFC
C. Equal amount of energy can flow both the chain
D. Dependent upon different species

Answer

**Step-by-Step Solution:**

1. **Understanding Energy Flow in Ecosystems:**
- Energy flow in terrestrial ecosystems primarily occurs through food chains, which can be classified into two main types: the detritus food chain and the grazing food chain.

2. **Detritus Food Chain:**
- The detritus food chain involves soil microbes that derive energy from decomposing organic matter, such as dead plants and animals. These microbes play a crucial role in breaking down this matter and recycling nutrients back into the ecosystem.

3. **Grazing Food Chain:**
- The grazing food chain starts with primary producers, mainly plants, which capture solar energy through photosynthesis. Herbivores (primary consumers) feed on these plants, and in turn, carnivores (secondary consumers) feed on the herbivores. This chain illustrates a direct flow of energy from producers to consumers.

4. **Comparison of Energy Flow:**
- While both food chains contribute to energy flow in terrestrial ecosystems, the detritus food chain is significant because it processes a large amount of dead organic matter, which is abundant in most ecosystems.

5. **Conclusion:**
- Given the importance of decomposers in recycling nutrients and the substantial amount of energy they help to process, we can conclude that a major portion of energy flow in terrestrial ecosystems occurs through the detritus food chain.

**Final Answer:**
The major flow of energy in terrestrial ecosystems occurs through the detritus food chain.

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