The variety of organisms within an ecosystem is characteristic of which type of diversity? a. genetic diversity b. ecosystem diversity c. species diversity d. regional diversity

The question is asking us which type of diversity is characteristic of the variety of organisms within an ecosystem. These organisms would be for example frogs, treets, insects - different species, therefore the best answer is c. Species diversity. Each species would have its own genetic diversity, but this is too specific for the whole ecosystem - on the level of the ecosystem, species are a more useful distinction