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chapter 6
Term | Definition |
---|---|
ecosystem | all the living and non-living things in an area and their interactions |
habitat | a place that provides all things an organism needs to live |
biotic | all the living organisms in an ecosystem |
abiotic | all the non-living organisms in an ecosystem |
population | a group of organisms of one species that live in an area at the same time |
community | different populations in an area make it up |
niche | the role that an organism has in an ecosystem |
carrying capacity | the number of organisms that can live in a habitat |
preditor | an animal that hunts and eats another animal |
prey | an animal that is hunted by others for food |
producers | make their own food for energy |
consumers | organisms that cannot make their own food |
decomposers | organisms that get their energy by breaking down waste and dead organisms |
herbivores | they eat only plants |
omnivores | eat plants and animals |
carnivores | eat only animals |
scavengers | eat dead animals, but doesn't do the killing |
parasite | an organism that lives inside or outside of an organism and hurts the organism |
symbiosis | a long-term relationship between two different organisms |
food chain | a series of steps by which energy moves from one type of living thing to another |
food web | a diagram that combines many food changes into one picture |