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| the study of interactions that take place between organisms and their environments. Living things are affected by nonliving and living parts of the environment. |
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| non-living factors in environment (air, temperature, light, soil, water, rocks, and nutrients) |
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| living organisms in the environment |
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| organisms that use sunlight to produce food (mostly plants) |
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| organisms that eat (consume) other organisms for energy |
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| organisms that get their food by breaking down the remains of dead organisms or animal waste (“nature’s recyclers”) (bacteria and fungi) |
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| Five Levels of Environmental Organization (from most specific to most general): |
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Organism (Level 1)
Population (Level 2)
Community (Level 3)
Ecosystem (Level 4)
Biosphere (Level 5) |
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A population is a group of organisms group of
the same species living in one area. |
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A community is made up of all of the populations
of different species in an area but
not the abiotic factors of that environment. |
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Made up of a community of organisms and
its abiotic environment. |
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| The part of Earth where life exists. |
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| consumer that eats a variety of meat, fruit and vegetables |
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| consumer that eats plants (cow) |
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| consumer that eats only animals (wolf) |
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| an organism that eats their prey (organism that gets eaten) |
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| an organism that feeds on the bodies of dead animals |
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| diagram that shows the flow of energy (usually 3-5 organisms long) |
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| diagram that shows many energy pathways through living things. (usually 2 or more food chains) |
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| the base (producers) contains the most energy, the top has the fewest organisms and the least amount of energy |
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| As you go up the energy pyramid, the amount of energy __________. |
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| As you go up the energy pyramid, the amount of organisms __________. |
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| As you go down the energy pyramid, the amount of energy__________. |
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| As you go down the energy pyramid, the amount of organisms __________. |
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