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Assertion: Herbivore productivity is app...

Assertion: Herbivore productivity is approximately 10% of gross productivity of producers.
Reason: Herbivores eat less and waste a lot of food energy.

A

If both Assertion and Reason are true and the Reason is the correct explanation for the Assertion.

B

If both Assertion and Reason are true and the Reason is not the corret explanation of the Assertion .

C

If Assertion is ture the Reason is false .

D

If both Assertion and Reason are false .

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that the productivity of herbivores is approximately 10% of the gross productivity of producers. This means that if producers (like plants) generate a certain amount of energy (let's say 100%), only about 10% of that energy is available to herbivores (primary consumers). 2. **Understanding the Reason**: The reason given is that herbivores eat less and waste a lot of food energy. This implies that the low productivity of herbivores is due to their eating habits and energy wastage. 3. **Analyzing the Energy Transfer**: According to the 10% energy transfer rule (Lindeman's energy pyramid), only about 10% of the energy from one trophic level is passed on to the next. Therefore, if producers have 100% energy, herbivores will only receive about 10% of that energy. 4. **Evaluating the Assertion**: The assertion is true because it aligns with the established ecological principle that herbivore productivity is indeed around 10% of the gross productivity of producers. 5. **Evaluating the Reason**: The reason provided is misleading. While it is true that herbivores may waste energy, the primary reason for the low productivity is not solely due to their eating habits. Energy loss occurs at every trophic level due to metabolic processes and heat loss, not just because herbivores eat less. 6. **Conclusion**: Therefore, the assertion is true, but the reason is false. The correct answer is that the assertion is true while the reason is false. ### Final Answer: - Assertion: True - Reason: False
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