ecosystems, lesson 2
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Ecosystems-Abiotic Factors
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An ecosystem is the interaction between
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An ecosystem is the interaction between biotic and abiotic factors
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Parts of an ecosystem that are living or were once living are called
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Parts of an ecosystem that are living or were once living are called biotic.
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Parts of an ecosystem that are non-living are called
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Parts of an ecosystem that are non-living are called abiotic.
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How do these abiotic factors affect the biotic parts of an ecosystem?
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SUN
•Warmth (gives warmth to animals)
• Solar energy (allows green plants to make food)
• Daylight (triggers activity in many animals)
• Seasons (signals changes in plants and animals such as flowers blooming or birds migrating)
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WATER
•All living things need water to live (plants & animals)
•Water transports nutrients to other areas
•Some organisms live in water
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AIR
•Provides oxygen (O₂)•Provides Carbon Dioxide (CO₂)
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SOIL
•Soil contains nutrients for plants.•Plants grow in the soil.•Animals live in the soil.
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