Question:
Given below are two statements regarding ecological succession.
Statement I: There is a change in the diversity of species of organisms.
Statement II: There is an increase in the number of species and organisms.
based on the above statements choose the correct option.
Given below are two statements regarding ecological succession.
Statement I: There is a change in the diversity of species of organisms.
Statement II: There is an increase in the number of species and organisms.
based on the above statements choose the correct option.
Statement I: There is a change in the diversity of species of organisms.
Statement II: There is an increase in the number of species and organisms.
based on the above statements choose the correct option.
Show Hint
Succession changes the species composition and increases species number and biomass.
Updated On: Nov 12, 2026
- Both Statement I and statement II are correct.
- Both Statement I and statement II are incorrect.
- Statement I is correct but Statement II is incorrect.
- Statement I is incorrect but Statement II is correct.
Show Solution
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
In ecological succession, communities change step by step from the pioneer to the climax stage.
Step 2: Statement I
The species composition keeps changing as new species replace earlier ones, so the diversity changes. This statement is correct.
Step 3: Statement II
From pioneer to climax, both the number of species and the number of organisms increase, along with biomass. This statement is correct.
Step 4: Conclusion
Both statements are correct.
Final Answer:
Both statements are correct. \[ \boxed{\text{(A) }\text{Both Statement I and statement II are correct.}} \]
In ecological succession, communities change step by step from the pioneer to the climax stage.
Step 2: Statement I
The species composition keeps changing as new species replace earlier ones, so the diversity changes. This statement is correct.
Step 3: Statement II
From pioneer to climax, both the number of species and the number of organisms increase, along with biomass. This statement is correct.
Step 4: Conclusion
Both statements are correct.
Final Answer:
Both statements are correct. \[ \boxed{\text{(A) }\text{Both Statement I and statement II are correct.}} \]
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