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Ecology Vocab List
6th grade science
| Term | Definition |
|---|---|
| ecology | the study of the relationship between living things and their environment |
| biotic factor | living things in an environment |
| abiotic factor | non-living things in an environment |
| organism | the living (biotic factor) things. An individual animal, plant or single-celled life form |
| population | a group of individuals of the same species living together |
| community | consists of all the populations of different species living and interacting together in the same area |
| ecosystem | consists of all the organisms that live in a place together with their nonliving environment |
| biosphere | part of Earth where life exists |
| homestasis | relatively constant internal physical and chemical conditions that organisms maintain |
| carrying capacity | the largest population an environment can support at any given time |
| competition | occurs when two or more individuals or populations try to use the same resource |
| predator | an organism that hunts and eats other organisms |
| prey | an organism that is hunted and killed by another organism |
| symbiosis | a relationship in which two different organisms live in close association with one another |
| mutualism | a symbiotic relationship where both organisms benefit |
| commensalism | a symbiotic relationship where one organism benefits and the other one is harmed |
| parasitism | a symbiotic relationship where one organism benefits and the other one is harmed |
| host | a living organism on or in which a parasite lives |
| parasite | an organism living in or on another organism in order to obtain nutrients |
| producer | organisms that use sunlight directly to make food |
| autotroph | an organism that can produce its own food |
| primary consumer | organisms that eat producers |
| herbivores | an animal that only eats plants |
| secondary connsumers | organisms that eat primary consumers |
| carnivores | an animal that eats meat |
| omnivores | animals that eat both animals and plants |
| tertiary consumer | organisms that eat secondary consumers |
| decomposers | organisms that get energy by breaking down dead organisms |
| food chain | series of steps in an ecosystem in which organisms transfer energy by eating and being eaten |
| food web | a complex network of interactions or organisms that are formed by feeding relationships within several food chains |
| biome | a group of ecosystems that share similar climates and organisms |
| adaptations | a change that takes place when an organism or species becomes better suited for its environment |
Created by:
dlcleve81!
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