Biodiversity: Biodiversity Quiz

The place where a particular population of a species lives is its habitat. The many different species that live together in a habitat are called a community. An ecosystem, or ecological system, consists of a community and all the physical aspects of its habitat, such as the soil, water, and weather. The physical aspects of a habitat are called abiotic factors, and the living organisms in a habitat are called biotic factors. The number of species living within an ecosystem is a measure of its biodiversity.