Which of the following best describes a benefit of biodiversity?

Increased genetic variability is a significant benefit of biodiversity. This variability within and among species is crucial for the resilience and adaptability of ecosystems. It enhances the ability of populations to survive and thrive in changing environmental conditions, such as climate change, diseases, and habitat loss. A diverse gene pool allows species to adapt to challenges, which is vital for maintaining ecosystem stability and function.

When populations have high genetic diversity, there is a greater likelihood that some individuals will possess traits that enable them to cope with new stresses or threats. This adaptability not only ensures the survival of individual species but also contributes to the overall health of ecosystems, promoting resilience against disturbances.

The other options do not accurately describe the benefits of biodiversity. For instance, a reduction in ecosystem services, decreased food security, and higher levels of pollution are contrary to the principles of biodiversity, which aims to enhance ecosystem functions, ensure stable food supplies, and support clean environments.