Important organism to the carbon cycle. Organism uses carbon during photosynthesis.

The organism at the bottom of an aquatic/water food chain.

This organism is needed for the nitrogen cycle. It transforms atmospheric nitrogen to a usable form.

This organism gets energy by eating other organisms.

The amount of land and ocean area needed to support one person

The amount of energy passed from one organism to the next in a food chain.

This biome has large herds of grazing rhinos, gazelles, and firaffes

This biome has animals that have specialized ways of surviving to avoid competition.

This biome has evergreen trees like pine, fir, and spruce.

Which biome is threatened by deforestation?

This biome has a layer of permafrost (frozen soil)

Deserts are often formed on the dry side of

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