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Photosynthesizers.
Form lowest trophic level |
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Use energy stored by producers
Form higher trophic levels |
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| large number of species that become extinct over a short time |
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| occur at lower rates at lower rates during times other than mass extinctions |
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| the study of interactions between organisms and between organismts and the environment |
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supplied by the sun. enters the living world as photosynthetic organisms trap the sun’s energy and transform it into glucose during photosynthesis
carbohydrate |
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Consume dead organic material for energy -bacteria, fungi-
release inorganic material that can be used by producers |
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| Depicts feeding relationships by showing a linear sequence and is simplistic |
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Depicts feeding relationships by showing many organisms and what they eat at several trophic levels
More realistic |
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| Dry weight of an organism |
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When it is transferred from one trophic level to the next.
10% to the next trophic level |
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| Diagrams that compare certain properties in a series of related trophic levels |
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| Depicts energy available at each trophic level |
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| Describes number of individuals at each trophic level |
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| The tendency of non degradable chemicals to become more concentrated in organisms in each successive trophic level |
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| the organism's role in the ecosystem, defined by all the physical, chemical, and biological factors that keep the organism healthy and allow it to reproduce |
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| the physical place where an organism lives |
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| the sequence of changes in the kinds of species making up a community |
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| occurs where no community previously existed |
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| when an existing ecological community is cleared away and is then left alone by humans- causing to undergo a sequence of changes in species composition |
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| carnivores that feed on secondary consumers |
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| Carnivores that feed on herbivores |
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| uses the energy of the sun to produce organic molecules |
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| the dry weight of the organism |
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| The tendency of a non-degradable chemical to become more concentrated in organisms as it passes along the food chain |
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