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Assertion: A community with more species...

Assertion: A community with more species is more stable than that with less species.
Reason: More the number of species, lesser the variation in the total biomass production year after year.

A

Both assertion and reason are true, and the reason is the correct explanation of the assertion.

B

Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

C

Assertion is true but reason is false.

D

Both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that "A community with more species is more stable than that with less species." This is based on ecological principles, particularly those proposed by David Tilman. A community with a greater number of species tends to have more complex interactions and relationships, which can lead to greater resilience against disturbances. **Hint:** Consider how biodiversity contributes to ecosystem stability. ### Step 2: Understand the Reason The reason given is "More the number of species, lesser the variation in the total biomass production year after year." This suggests that a diverse community can maintain a more consistent level of biomass production over time, which is an indicator of stability. When there are more species, if one species declines due to environmental changes, others can fill in the gap, thus maintaining overall productivity. **Hint:** Think about how different species can compensate for each other in an ecosystem. ### Step 3: Evaluate the Relationship Between Assertion and Reason Now, we need to determine if the reason provided correctly explains the assertion. The assertion claims that more species lead to greater stability, and the reason explains that this stability is reflected in consistent biomass production. Therefore, the reason does support the assertion. **Hint:** Check if the reason logically follows from the assertion. ### Step 4: Conclusion Since both the assertion and the reason are true, and the reason provides a correct explanation for the assertion, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion. **Final Answer:** Both assertion and reason are true, and reason is the correct explanation of assertion (Option 1).
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states that "A community with more species is more stable than that with less species." This is based on ecological principles, particularly those proposed by David Tilman. A community with a greater number of species tends to have more complex interactions and relationships, which can lead to greater resilience against disturbances. **Hint:** Consider how biodiversity contributes to ecosystem stability. ### Step 2: Understand the Reason ...
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