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11 Cards in this Set
- Front
- Back
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bacteria
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prokaryotic, single-celled, microscopic organisms
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decomposers
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organisms that break down dead organic matter into smaller molecules
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chemosynthesis
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the making of organic material from inorganic substances using chemical energy
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phytoplankton
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photosynthetic organisms that drift in the water
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zooplankton
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tiny floating organisms that are either small animals or protozoa
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thallus
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the complete body of an alga, not differentiated into true leaves, stems, or roots
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diploid cell
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a cell that has chromosomes which come in pairs
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haploid cell
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a cell that contains half the normal number of chromosomes (one from each pair)
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alternation of generations
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a life cycle that alternates between a sexual stage (gametophyte) and an asexual stage (sporophyte)
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symbiosis
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a close relationship between two species where at least one benefits
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lichen
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an organism that results from the symbiosis between a fungus and an alga
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