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ECOSYSTEMS (a community of living organisms interacting with one another…
ECOSYSTEMS (a community of living organisms interacting with one another and with the nonliving components)
Population : Group f individuals f the same species, living in a shared space at a given point in time
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Trophic relationships
Organisms in an ecosystem are connected by feeding relationships-each link in a food chain= trophic level
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ECOSYSTEM DYNAMICS
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ENERGY
unlike matter, it is never recycled - it moves in one direcrion through a food chain
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10% rule
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basal metabolism, digestion and physical activity
primary productivity
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as you move up a food chain, both AVAILABLE BIOMASS and associated ENERGY DECREASES (105RULE)
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