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biology exam notes
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9
Biology
Undergraduate 1
12/14/2011
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Term
Species
 Definition

Group of organisms resembling eachother

 

interbreed under natural condictions

 

Produce fertile offspring
Term
Phylogenetic tree
 Definition
Evolutionary relations among organisms
Term
Systematics
 Definition
Classification of living organisms detrmine evolutionary relationships
Term
Phylogenic tree
 Definition

-infers evolutionary relationships

 

-shared charcteristics morphology

-life style

-fossil evidience if possible molecular data

-sequences of proteins and genes

Term
Homology
 Definition
descent from common ancestor
Term
Anaology
 Definition
similiar structures but not from common ancestor
Term
wings
 Definition

bat wings

bird wings

insect wings

 

similiar scture and can be considered homologs
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