The idea that diversity in isolated habitats depends on rates of colonization and extinction is part of the equilibrium theory of biogeography.

Which of the following is the correct definition of the equilibrium theory of island biogeography?Multiple choice question.Gradual changes in gene frequencies occur due to random events.Diversity in isolated habitats depends on rates of colonization and extinction.Two species interact with each other and one species benefits while the other remains unaffected.Different gene types will be distributed in the same ratio in offspring as they occur in parents.

The unity and diversity of life can be explained byMultiple choice question.the similarity of habitats throughout the biosphere.the Hardy-Weinberg equilibrium.the fact that organisms use different genetic codes.descent from a common ancestor.

Ecosystem diversity is the variety of ________ Group of answer choicestypes of natural communities, habitats and ecological processes.habitats that are occupied by a single species.endemic species in an area.plants and animals in a particular ecosystem.

In a given ecosystem, what is one way that you can define species diversity?Group of answer choicesWhen looking at the mammal population, one could consider both the overall number and the types of species present.Through analysis of the number of all different species within an ecosystem.When looking at the bird population, one could consider the number of individuals in the ecosystem.When looking at the flora of the ecosystem, one could consider the density of the growth per square metre.Through the abundance of all the animals in the ecosystem (vertebrates, invertebrates, plants etc..).

The idea that no two species can occupy the same ecological niche for long in a given ecosystem is summarized in the principle of exclusion.