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vocab
n/a
13
Science
7th Grade
01/14/2013

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Term
natural selection
Definition
individuals whose unique characteristics are well suited for an environment tend to survive and produce more off springs
Term
adaptations
Definition
the behaviors and physical characteristics that allow organism to live successfully in their environment
Term
competition
Definition
ex. weeds in a garden compete with vegetable crops
Term
predation
Definition
one organism kills another for its food
Term
predator
Definition
the organism that does the killing
Term
prey
Definition
the organism that is killed
Term
symbiosis
Definition
when two species live closely together for ones benefits
Term
mutualism
Definition
a relation ship were both species are benefited
Term
commensalism
Definition
were one species is benefited and the other is neither helped nor harmed
Term
parasitism
Definition
were one organism lives with in or on and harming it
Term
parasite
Definition
an organism that benefits
Term
host
Definition
an organism that lives in or on
Term
niche
Definition
the role of an organism in its habbitat
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