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covenant BIO112 exam 1
flashcards for bio112 exam 1
5
Biology
Undergraduate 1
03/26/2012

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Cards

Term

 

Habitat isolation

Definition

 

 

A prezygotic barrier;

geographic barrier prevents contact

Term

 

Temporal isolation

Definition

 

 

Prezygotic barrier;

species reproduce at different times of

the day or year

Term

 

Behavioral isolation

Definition

 

Prezygotic barrier;

since behavior is important in mate choice, differing patterns prevents mating between species

(Ex: different bird songs)

Term

 

Mechanical isolation

Definition

 

Prezygotic barrier;

size or incompatible genitalia prevents mating

(physically incompatible)

Term

 

Gametic isolation

Definition

 

Prezygotic barrier;

gametes fail to unite succesfully

(otherwise compatible, but sperm doesn't fuse with egg)

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