A group of potentially interbreeding individuals; which do not normally interbreed with any other groups to produce living fertile offspring .
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Card 7
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A sequence of organisms in an ecosystem in which each is the food of the next organism in that sequence . Arrows represent energy flow through the chain.
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Card 8
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All the interconnected food chains in an ecosystem ( usually complex to calculate)
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Card 9
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A feeding level in a food web - defined by the method of obtaining food . All the organisms in a particular _________ are the same number of energy transfers away from the producers.
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Card 10
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The first organism in a food chain usaully an autotroph
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Card 11
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An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
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Card 12
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An organism deriving its nutritional requirements from complex organic substances.
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Card 13
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The second organism in a food chain ( second tropic level) it consumes energy from the producer so it is a herbivore
