ecology
DESCRIPTION
Plants and animals depend on each other and their physical environment. Ecology. Describe the flow of energy and matter through food chains and food webs. Objective. Energy Flow Through Ecosystems. Energy flows through ecosystems in one direction - PowerPoint PPT PresentationTRANSCRIPT
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ECOLOGYPlants and animals depend on each other and their physical environment.
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OBJECTIVE Describe the flow of energy and matter
through food chains and food webs.
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ENERGY FLOW THROUGH ECOSYSTEMS Energy flows
through ecosystems in one direction
Energy flows from the Sun to Producers to Consumers to Decomposers
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ENERGY FLOW THROUGH ECOSYSTEMS
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ENERGY FLOW THROUGH ECOSYSTEMS
process may be visualized with food chains
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ENERGY FLOW THROUGH ECOSYSTEMS process may be visualized with energy
pyramids.
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FOOD WEBS Food webs identify
feeding relationships among producers, consumers, and decomposers in an ecosystem.
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MATTER CYCLES Matter is transferred from one
organism to another and between organisms and their physical environment.
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WATER CYCLE
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CARBON AND OXYGEN CYCLE IN PS.
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CARBON CYCLE
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NITROGEN CYCLE
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OBJECTIVE Provide evidence that green plants
make food and explain the significance of this process to other organisms
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PHOTOSYNTHESIS the Sun’s energy is
converted into and stored as chemical energy in the form of a sugar.
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PHOTOSYNTHESIS Photosynthesis is
carried on by green plants and other organisms containing chlorophyll.
Chlorophyll Molecule (found inside the chloroplasts)
Moss Chloroplasts
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PHOTOSYNTHESISThe quantity of sugar molecules increases in green plants as sunlight increases
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OXYGEN AND CARBON DIOXIDE The major source of atmospheric oxygen is
photosynthesis.
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OXYGEN AND CARBON DIOXIDE Carbon dioxide is removed from the
atmosphere and oxygen is released during photosynthesis.
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PRODUCERS Green plants are the
producers of food which is used directly or indirectly by consumers
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PRODUCERS Green plants are the
producers of food which is used directly or indirectly by consumers