Question 1

Many species might coexist in a particular environment by occupying different ecological rev: 11_18_2013_QC_40588

Accepted Answer

A) biomes. 
B) niches. 
C) territories. 
D) domains. 
A) biomes. 
B) niches. 
C) territories. 
D) domains.

Question 2

Diversification of mammals after the extinction of the dinosaurs is considered an adaptive radiation because a few mammal species rapidly evolved into most of the current mammalian lineages in a relatively short amount of time.This diversification was partially driven by the evolution of endothermic homeostasis in mammals, which is an example of

Accepted Answer

A) allopatric speciation. 
B) reproductive isolation. 
C) a key innovation. 
D) hybridization. 
A) allopatric speciation. 
B) reproductive isolation. 
C) a key innovation. 
D) hybridization.

Question 3

Punctuated equilibrium proposed by Eldredge and Gould in 1972 is an evolutionary process that involves

Accepted Answer

A) gradual change observable in the fossil record with very little, if any, stasis. 
B) "spurts" of change observable in the fossil record followed by periods of stasis. 
C) gradual change observable in the fossil record followed by periods of stasis. 
D) "spurts" of change observable in the fossil record with very little if any stasis. 
A) gradual change observable in the fossil record with very little, if any, stasis. 
B) "spurts" of change observable in the fossil record followed by periods of stasis. 
C) gradual change observable in the fossil record followed by periods of stasis. 
D) "spurts" of change observable in the fossil record with very little if any stasis.

Question 4

Which form of speciation is most rapid?

Accepted Answer

A) allopatric speciation on the mainland 
B) allopatric speciation on island archipelagos 
C) sympatric speciation via polyploidy 
D) sympatric speciation via disruptive selection 
A) allopatric speciation on the mainland 
B) allopatric speciation on island archipelagos 
C) sympatric speciation via polyploidy 
D) sympatric speciation via disruptive selection

Exam 22: The Origin of Species

Many species might coexist in a particular environment by occupying different ecological rev: 11_18_2013_QC_40588

Punctuated equilibrium proposed by Eldredge and Gould in 1972 is an evolutionary process that involves

Which form of speciation is most rapid?

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