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20 Cards in this Set
- Front
- Back
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ecology
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study of living organisms in environment
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biotic environment
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living
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abiotic
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non-living
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autotrophs
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make their own food
ex: plants use chloroplasts |
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food/energy pyramid
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most energy expended on bottom. Consumers on top
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biosphere
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encompasses the atmosphere several kilometers above the earth to the depth's of the planet's oceans
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ecology
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the study of interactions between organisms and the environment
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individual
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a single organism
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population
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a group of interbreeding individuals of the same species in a given area
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community
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several interacting populations within a given area
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ecosystem
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a community of organisms interacting with the abiotic environment in a given area
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trophic diagram/food web
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visually represents the energy sources of organisms in a given community
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autotrophs or primary producers
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compose base of food web. autotrophs/primary producers capture solar/chemical energy and store it
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heterotrophs
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feed directly or indirectly upon producers. heterotrophs may be primary consumers, which eat primary producers.
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secondary consumers ,
tertiary consumers |
eat primary consumers
eat secondary consumers |
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decomposers
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break down dead organisms into simple materials, such as nutrients, that can be reused.
ex: bacteria and fungi |
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diversity
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variety of different organisms inhabiting an area
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richness
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the number of species in a community
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relative abundance
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the proportion of individuals of the community that are in each species
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evenness
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diversity includes evenness, which incorporated the relative abundance of species
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