Question

Assertion (A): Communities that comprise of more species tend to be more stable.

Reason (R): A higher number of species results in less animal variation in total biomass.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

Explanation:

More species-rich communities tend to be more stable. Experiments found that plots with more species showed less year-to-year variation in total biomass.