Question

Assertion: Communities that comprise of more species tend to be more stable

Reason: A higher number of species results in less annual variation in total biomass

• 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. The assertion is true but the reason is false
• D. Both assertion and reason are false

Answer 1

The correct option is A Both assertion and reason are true and the reason is the correct explanation of the assertion

Ecologists believe that communities with more species tend to be more stable than those with less species.

David Tilman suggested that more species richness in a community results in less annual variation in total biomass. He also showed that, with the increase in the biodiversity in a given area, the productivity may also increases in that area.