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chapter 15
section 1 and 3
10
Biology
9th Grade
03/09/2009

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Term
evolution
Definition
process in witch modern organsims have decended from acient organsims
Term
theory
Definition
a well supporter testable
Term
fossils
Definition
perserved remains of acient organsims
Term
artifical selection
Definition
nature provides variation and humans select from those varitaions what they found most useful
Term
strugle for existence
Definition
members of the same speies compete regulary to obtain food
Term
fitness
Definition
the ability of an individual to survive and reproduce in its speific enviroment
Term
adaption
Definition
any inherited charactic that increses an organsims chance of survival
Term
survival of the fittest
Definition
process by witch individuals that are better suited to their envionment survive and reproduce most successfully
Term
common decent
Definition
we could find the common ancestors of all living things
Term
homologous structers
Definition
structers that have different mature forms but devlope from the same embryonic tissue
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