Percentage energy transferred to higher trophic level in food chain is:-

Options

A. 0.01
B. 0.1
C. 0.9
D. 1

Answer

To solve the question regarding the percentage energy transferred to higher trophic levels in a food chain, we can follow these steps:

### Step 1: Understand the 10% Rule
The 10% Rule, proposed by Lindeman, states that when energy is transferred from one trophic level to the next, only about 10% of the energy is passed on to the next level. The remaining 90% is lost primarily through metabolic processes such as respiration, heat loss, and waste.

### Step 2: Apply the 10% Rule to the Food Chain
Let's assume that at the producer level (first trophic level), there is 100 calories of energy available. According to the 10% Rule:
- Energy transferred to the herbivores (second trophic level) = 10% of 100 calories = 10 calories.
- Energy transferred to the carnivores (third trophic level) = 10% of 10 calories = 1 calorie.

### Step 3: Calculate the Percentage Energy Transfer
To find the percentage of energy transferred to the higher trophic level, we can express it as:
- Energy transferred to the next level (herbivores) = 10 calories.
- Total energy at the producer level = 100 calories.

Now, to find the percentage:
\[ \text{Percentage Energy Transfer} = \left( \frac{\text{Energy transferred to higher trophic level}}{\text{Total energy at producer level}} \right) \times 100 \]
\[ = \left( \frac{10}{100} \right) \times 100 = 10\% \]

### Step 4: Convert Percentage to Decimal
To express this percentage in decimal form:
\[ 10\% = 0.1 \]

### Conclusion
Thus, the percentage energy transferred to the higher trophic level in a food chain is **0.1**.

### Final Answer
The correct option is **0.1**.

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