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How to remember five levels at which relationships between biotic/abiotic factors are studied

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asked Feb 1, 2018 by sparkling_soul (1,350 points)
edited Nov 20, 2018 by nanospeck

Organisms 
Populations 
Communities 
Ecosystems 
Biosphere

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answered Feb 1, 2018 by sparkling_soul (1,350 points)
"Old People Catch Easy Breaks"

Old = Organisms
People = Populations
Catch = Communities
Easy = Ecosystems
Breaks = Biosphere

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