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chapter 5
vocabulary
9
Biology
10th Grade
10/05/2010
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Term
background extinction
 Definition
gradual process of a species becoming extinct
Term
mass extinction
 Definition
large scale dying out of a large percentage of all living organisms in an area within shart time
Term
natural resouces
 Definition
any material or orgimism in the bioshare, including water,soil, fual and plant and animals
Term
over exploitation
 Definition
overuse of species with
Term
economic value
 Definition
a factor in species extintion
Term
habitat fragmentation
 Definition
habitat loss from separation of an ecosysteminte small pices of land
Term
biological magnification
 Definition
Term
euntrophication
 Definition
water polltion from
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