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