Higher body versity means is more stable ecosystem false.

True. Stability in an ecosystem depends on a variety of factors such as biodiversity, species interactions, and environmental conditions. While higher biodiversity often correlates with increased stability, it is not necessarily the only or the most important factor determining ecosystem stability. Other factors such as ecosystem resilience, disturbance regimes, and ecological succession also play critical roles in maintaining stability. Therefore, simply having a higher body versity (presumably referring to higher biodiversity) does not guarantee a more stable ecosystem.