Biodiversity Section 1 Review

Most biologists are confident that at least ________ million species exist on Earth.

10

Which of the following is NOT a level of biodiversity?

Absolute diversity

Which of the following statement is NOT a reason to maintain biodiversity, or the presence of many species?

Biodiversity can speed the process of getting government protection for endangered species.

Which of the following arguments to protect the African elephant, which is a threatened species, suggests that the African elephant is a keystone species?

If the African elephant becomes extinct, its habitat will no longer be able to exist as a grassland habitat.

Which of the following groups of organisms include the greatest number of species?

Insects`

Which of the following best describes biodiversity?

The variety of organisms in a given area.

Individual species

relate to the environment in a way that is not always understood.