Quiz3_4pm - a. a mass extinction event b. background...

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What type of speciation is most common in animals? a. sympatric speciation b. hybrid speciation c. allopatric speciation d. reverse speciation a. reproductive speciation
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Given what you know about evolution, how can you explain the existence of a ‘living fossil’ like a coelecanth? a. the species probably has not experienced any genetic mutation in its long history b. the species probably has undergone mutation and natural selection, but not to the extent that it has undergone extreme changes in appearance c. the species may have remained in fairly constant environment, so that natural selection has not affected dramatic changes in its morphology
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The continuous, low-level rate of extinction is known as:
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Unformatted text preview: a. a mass extinction event b. background extinction c. temporal extinction d. selective extinction e. hypothetical extinction Which of the following observations lead you to conclude that two species have a postzygotic mechanism for reproductive isolation? a. the two species have different mating dances b. one species appears to mate earlier in the season c. the species attempt to mate but are unable due to structural differences d. individuals from the two species ignore each other e. none of these observations strongly The midterm is on: a. Saturday b. Monday c. Tuesday d. Wednesday e. When heck freezes over...
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This note was uploaded on 07/27/2008 for the course BIO SCI 05125 taught by Professor Burley during the Summer '08 term at UC Irvine.

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Quiz3_4pm - a. a mass extinction event b. background...

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