A variety of different mechanisms in nature help create diversity in organism populations. The tundra found in the northernmost parts of the planet is the world’s youngest biome. The tundra is home to a variety of plants and animals. Organisms that can be found in the tundra include shrubs, mosses, caribou, polar bears, and wolves. Which mechanism do the different organism populations found across the tundra exemplify?

The tundra contains many different kinds of organisms, including shrubs, mosses, caribou, polar bears, and wolves. The variety of different species living in an area is called species diversity, so the correct choice is species diversity. Genetic diversity refers to differences among individuals of the same species, while ecosystem diversity refers to variety among ecosystems.

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