What does the mean of stability in context to a biological community ?

Options

A. A stable community should not show too much variation in productivity from year to year.
B. A stable community must be either resistant or resilience to occasional disturbance (natural or man-made).
C. A stable community must be resistant to invasion by alien species.
D. All of the above

Answer

D

Explanation

Ecologist believed that communities with more species generally tend to be more stable than those with less species.
(i) Stable ommunity should show too much variable in productivity from year to year.
(ii) Stable community must be either resistant or resilient to occasional disturbance (natural / anthropogenic man made).
(iii) Stable community must also be resistant to invasion by alien species.