Biology · BIODIVERSITY AND CONSERVATION

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Communities with higher species richness generally show less year-to-year variation in total biomass. Reason (R): David Tilman's long-term ecosystem outdoor plots demonstrated that increased diversity contributes to higher productivity. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. is true but (R) is false.
4. is false but (R) is true.