Final answer:
The number of species in a community indicates its biodiversity and ecological health. Higher biodiversity is associated with a healthier ecosystem.
Step-by-step explanation:
The number of different species in a community is indicative of its biodiversity and ecological health. Biodiversity refers to the variety of living organisms in a particular area or ecosystem. A higher number of species indicates a higher level of biodiversity, which is typically associated with a healthier and more stable ecosystem. This is because different species play important roles in maintaining the balance of the ecosystem, such as providing food, regulating populations, and contributing to nutrient cycling.