Assertion : In the successive seral stages increase in the number of species and organisms as well as an increase in the total biomass. Reason : In the successive seral stages there is a change in the diversity of species of organisms.
- AAssertion and reason both are true and the reason is correct explanation of assertion.
- BAssertion and reason both are true but reason is not correct explanation of assertion.
- CAssertion is true but reason is wrong.
- DAssertion and reason both are wrong.
✓ Correct answer: B
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