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Chap 1 section 2

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
Created by: srosa