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5 Cards in this Set
- Front
- Back
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biomes
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生物群系
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biomass
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total mass of living organic, expressed as a dry weight of tissue er unit area
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biomass ratio
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the proportion between the biomass at a given trophic level and that at the next higher trophic level
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dead organic matter (DOM)
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dead & decaying plant and animal remains(made up of suface litter & soil humus)
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biosphere/ ecosphere/ planetary ecosystem
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all of the earth's ecosystems together make up the biosphere
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