Assertion:- Most of the food chain can be complete with predation.
Reason:- Predation act as condult for energy transfer across trophic levels.

Options

A. If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.
B. If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion
C. If Assertion is True but the Reason if False.
D. If both Assertion `&` Reason are false.

Answer

To solve the assertion-reason question, we will analyze both the assertion and the reason step by step.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Most of the food chain can be complete with predation."
- This means that predation plays a crucial role in the functioning of food chains, where one organism (the predator) feeds on another (the prey).

2. **Understanding the Reason**:
- The reason states that "Predation acts as a conduit for energy transfer across trophic levels."
- This implies that through the process of predation, energy is transferred from one trophic level to another, which is essential for the survival of organisms at different levels in the food chain.

3. **Analyzing the Food Chain Example**:
- Consider a simple food chain: Plants → Deer → Fox → Tiger.
- Plants (producers) convert sunlight into energy through photosynthesis. For example, they may produce 10,000 joules of energy.
- When deer (primary consumers) eat the plants, they obtain a fraction of that energy, say 1,000 joules.
- Foxes (secondary consumers) that prey on deer receive even less energy, perhaps 100 joules.
- Finally, tigers (tertiary consumers) that prey on foxes receive about 10 joules.
- This illustrates how energy diminishes at each trophic level but is transferred through predation.

4. **Conclusion**:
- Both the assertion and reason are true. Predation is indeed essential for completing food chains, and it facilitates the transfer of energy across different trophic levels.

### Final Answer:
Both the assertion and reason are true, and the reason is the correct explanation of the assertion.