• What kind of life survives in an environment depends on its factors
• Factors can be divided into two categories: biotic and abiotic
• Abiotic means non-living. Abiotic factors include water, temperature and sunlight
• Biotic means living. Biotic factors include plants and animals.
• A biome is a geographic area that is similar. Biomes are larger than ecosystems.
• Ecosystems are parts of biomes. A single lake might be an ecosystem that is part of a forest biome.
• Plants, animals and organic matter all affect life with ecosystems.

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