Ecosystems

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What is an ecosystem?

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An ecosystem is all of the living and nonliving things in an area and their interactions.

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What are biotic factors?

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Biotic factors are the living components of an ecosystem, such as plants, animals, bacteria, and fungi.

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What are abiotic factors?

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Abiotic factors are the non-living components of an ecosystem, such as water, soil, air, and temperature.

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What is the hydrosphere?

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The hydrosphere is composed of all the water on or near the Earth.

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What is the geosphere?

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The geosphere includes the continents, the ocean floor, all the rocks on the surface, and all of the sand in the deserts.

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What is the atmosphere?

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The atmosphere is the layer of gases surrounding the Earth.

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What is a coniferous forest?

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A coniferous forest is a land biome characterized by warm summers, very cold winters, and cone-bearing trees.

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What is a tundra?

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A tundra is a cold, treeless biome with low-growing vegetation and a short growing season.

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What is a tropical rainforest?

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A tropical rainforest is a warm, wet biome with high biodiversity and dense vegetation.

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What is a temperate grassland?

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A temperate grassland is a biome characterized by grasses, moderate rainfall, and few trees.