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Exam 14: How Biological Diversity Evolves

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Question 1

Multiple Choice

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Of the following taxonomic levels,species found within the same ______ are the most closely related.

A) family
B) phylum
C) order
D) domain

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A

Question 2

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Which of the following taxonomic levels is most inclusive?

A) order
B) genus
C) family
D) class

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Question 3

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Analogous structures are evidence of ______.

Biological species consist of groups of ______.

Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces.This switch in function is an example of ______.

Which of the following describes allopatric speciation?

The biological species concept cannot be applied to ______.

Graphically,the graduated model of speciation can be described as appearing as a ______.

You are examining the fossil record and notice that through time a series of fossils exhibits very little change.During the period of time you are studying,this fossil lineage can be described as exhibiting ______.

Speciation requires ______.

Which of the following is a binomial?

A period of mass extinction is often followed by ______.

The Permian mass extinction is associated with

When two frog species,Rana pipiens and Rana sylvatica,mate,the offspring die early in embryonic development.This is an example of ______.

Plate tectonics has been responsible for instances of all of the following except

Characid fishes only found naturally only in South America and Africa.Fossils of these fish are not found on any other continents.What is the most likely explanation of this distribution pattern?

Sympatric speciation specifically excludes ______.

Read the following scenario to answer the following question(s) . In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called ligers. Male ligers are sterile but some female ligers are fertile. In the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. Furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. -Applying the biological species concept,the production of ligers reveals that ______.

When brought together in a zoo,two species are capable of mating and producing fertile offspring.Why may they still be considered two distinct species?

Uranium-235,with a half-life of 713,000,000 years,decays to lead-207.If a rock sample is determined to have one-quarter of the uranium-235 content it had when it formed,the age of the rock sample can be estimated to be approximately ______ years old.