11 terms

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Terms in this set (...)

Ecosystyem
Living and non-living organisms in an environment
Habitat
natural environment for an organism-where it lives
Niche
The role an organism plays in its ecosystem
Consumer
an organism, usually an animal, that feeds on plants or other animals
Scavenger
an animal or other organism that feeds on dead organic matter.
Ecology
the study of interactions between organisms and their environment, including other organisms
Decomposer
an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances.
energy pyramid
An ecological pyramid illustrating the energy flow within an ecosystem.
food web
a series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological community.
community
an assemblage of two or more populations of different species occupying the same geographical area
population
a. the assemblage of a specific type of organism living in a given area.
b. all the individuals of one species in a given area.