F07.204.FoodWebs - Applying the Rules to Environmental...

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1 Applying the Rules to Environmental Science: Food Webs Earth: Earth is a Open System to Energy Heat Sunlight
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2 “Life is a struggle of an immense number of organisms, weighing next to nothing, for a small amount of energy.” Producers ( Autotrophs) Tall grass prairie Energy enters the system
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3 Producers Chlorophyll Photosynthesis Carbon Dioxide + Water + Sunlight --> Sugar + Oxygen Producers Chemosynthesis Hydrogen Sulfide + Carbon Dioxide + Water + Oxygen + Geothermal Heat --> Sugar + Sulfuric Acid
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Consumers --> Heterotrophs Primary Consumers - eat producers (Herbivores) Secondary Consumers - eat primary consumers (Carnivores) Tertiary Consumers - eat secondary consumers Decomposers - break down dead organisms Called “Trophic” (Feeding) Levels Represent the flow of energy (food) Called “Trophic” (Feeding) Levels Represent the flow of energy (food) Producer Primary Consumer Secondary Consumer Tertiary Consumer Flow of Energy Sun
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F07.204.FoodWebs - Applying the Rules to Environmental...

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