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Produce their own food from solar energy by photosynthesis; transform solar energy into chemical energy; primary producer
Consume other organisms (consumers); Get energy from primary producers; carnivores, herbivores
Heterotrophs: Primary, secondary, tertiary, quaternary
Detritivores and decomposers derive energy from dead materials and wastes
Components of ecosystems
Energy flow: passage of energy through the ecosystem
Chemical cycling: Transfer of materials within the ecosystem
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