What is the main benefit of genetic biodiversity?

helps populations avoid predators
helps individuals produce more offspring
helps populations adapt to environmental changes
helps individuals complete each other

The main benefit of genetic biodiversity is that it helps populations adapt to environmental changes. Genetic diversity provides a wider range of variations within a population, increasing the likelihood that some individuals will possess traits that are advantageous in a changing environment. This ability to adapt and respond to different conditions improves the survival and success of a population in the long run.