Science Ecosystem #2
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17 terms
Terms | Definitions |
|---|---|
 Predator | the organism that does the killing |
| Natural Selection | process in which a species becomes better suited to its environment |
| Adaptation | characteristic that allows a specific species to live sucessfully in its environment |
| Niche | the way a species makes its living |
| Prey | the organism that is killed |
| Predation | an interaction in which one organism kills and eats another |
| Succession | the series of predictale changes that occur in a community over time |
| Primary Succession | the series of changes that occur in an area were no soild or organisms exist |
| Pioneer Species | the first species to populate the area in primary succession |
| Secondary Succession | the series of changes that occur where the ecosystem has been disturbed but soil and organism still exist |
| Competiton | the struggle between organisms to survive as they attempt to use the same limited resource |
| Symbiosis | a close relationship between two species that benefitsw at least one of the species |
| Mutualism | relationship in which both species benefit |
| Commensalism | relationship in which one species benefits and the other species is neither helped nor harmed |
| Parasitism | involves one living organism living on another organism abd harming it |
| Parasite | the organism that benefits |
| Host | the organsim it lives on |
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