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Chap 1 section 2
Question | Answer |
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natural selection | a characteristic that makes idividuals better suited for their environment may eventually become common in that species through a process called natural selection |
adaptation | behaviors and characteristics that allow organisms to live successfully in their environments |
niche | the role if an organisms habitat,or how it makes its living,is called niche |
competition | the struggle between organisms to survive as they attempt to use the same limited resource |
predation | an interaction in which on organism kills another for food |
predator | the organism that does the killing |
prey | the organism that is killed |
symbiosis | a close relationship between two species that benefits at least one of the species |
mutualism | a relationship in whichboth species benefits |
commensalism | a relationship in which one species benefits and the other species is neither helped nor harmed |
parasitism | involves one oraganism living on or inside another organism and harming it. |
parasite | the organism that benefits is called parasite |
host | the the organism the parasite lives on or is is called the host |