Environmental features such as climatic and edaphic factors , that do not derive directly from the presence of other organisms .
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Card 17
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Any characteristic of the environment resulting from the physical , chemical or biotic components of the soil
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Card 18
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Those features of the environments of organisms arising from the activities of other organisms.
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Card 19
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Consumes/ obtains energy from the primary consumer thus a carnivore
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Card 20
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A representation of the number of organisms in each trophic level in a ecosystem; the width of each block is proportional to the number of organisms in each trophic level .
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Card 21
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A better representation of the biomass in each trophic level in a ecosystem ; the width of each block is proportional to the biomass in each trophic level.
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Card 22
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The total quantity or weight of organisms in a given area or volume.
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Card 23
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A representation of the energy in each trophic level in a ecosystem . The width of each block is proportional to the energy in each trophic level.It is usually measured in KJ M.^-2 year^-1.
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Card 24
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The maximum population that an ecosystem can support
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Card 25
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The environmental factors which reduce poulation growth rate e.g disease , predation, competition
