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Ecosystem Vocabulary

Ecosystems, energy transfer, evolution

TermDefinition
ecosystem communities of organisms interacting with their abiotic environment
habitat where an organism lives
biotic factor a living, once living thing, or byproduct of a living thing
abiotic factor non-living parts of the environment
producers organism that can make its own food; autotroph
species organisms that can reproduce to create fertile offspring
consumers organisms that cannot make their own food; heterotroph
decomposers organism that breaks down dead things and waste
organism a single living thing
ecology study of interactions between organisms and their environment
population organisms of the same species that are found in the same place and often interbreed
community populations of different species that interact
natural selection concept that individuals who are best adapted to survive in their environment will reproduce more than individuals that are not as well adapted
biome large areas with similar ecosystems and climates
evolution changes in population over time from one generation to the next
adaptation a trait that helps an organism survive
artificial selection selective breeding of organisms for desirable traits; this is done by humans and does not happen naturally
resistance the ability of an organism to be unaffected by a chemical or toxin
predator an animal that lives by killing and eating other animals
prey an animal that is hunted and killed by another for food
trophic level the steps in a food chain or food web between which energy is transferred
energy originates from the sun and is transferred when organisms are consumed
carnivore a consumer that eats other animals
herbivore a consumer that eats plants
omnivore a consumer that eats plants and animals
Created by: kruiz1
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