Evolution & Animal Behavior Unit Review

Separation of populations as a result of geographic change or migration to geographically isolated place 

• geographic isolation 
• adaptive radiation 
• punctuated equilibrium 
• embryology 

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Evolutionary model suggesting species often diverge in spurts of relatively rapid change, followed by long periods of little change.

• geographic isolation 
• adaptive radiation 
• punctuated equilibrium  
• embryology  

Study of multicellular organisms as they develop from fertilized eggs to fully formed organisms. 

• geographic isolation  
• adaptive radiation  
• punctuated equilibrium  
• embryology  

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What is the principle that defines evolution in terms of allele frequency?

• Natural Selection
• Convergent Evolutions
• Directional Selection
• Hardy -Weinberg

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Which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the wings of an ostrich

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If an organism has a vestigial structure, that structure likely once had a function in a(n)

• close relative
• early ancestor
• unrelated organism
• embryological stage

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Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

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A measure of how commonly a particular allele occurs in a population is known as the 

• gene pool
• allele frequency
• mutation rate
• phenotype

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The hind leg bones in a whale are examples of

• homologous structures
• analogous structures
• fossils
• vestigal structures

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Combined alleles of all individuals in a population is called

• phenothype
• gene pool
• mutation rate
• allele frequency

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