Patterns and Evidence of Evolution

In natural selection, the selective agent is the

• humans
• mutations
• breeders
• environment

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a bird that can easily outcompete other birds for food and that can produce many eggs has a high

• life expectancy
• mutation rate
• fitness
• adaptability

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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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Genetic variation can arise from a random change in the DNA of a gene.  The change is called a(n)

• mutation
• gene flow
• gene pool
• allele

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What kid of isolation occurs when two populations of birds have different courtship dances?

• geographic
• sexual
• temporal
• behavioral

An earthquake causes an ocean channel top open and separate an island into two.  the species on each section are now in

• geographic isoliation
• behavioral isolation
• disruptive selection
• temporal isolation

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two species are in different environments and look very similar.  However, that are not closely related (analogous).  Their resemblance is most likely an example of.

• sexual selection
• temporal isolation
• convergent evolution
• divergent evolution

Other insects can not, but, a bumble bee has just enough weight to open up the snapdragon flower and pollinate.  This adaption is ....

• convergent evolution
• co-evolution
• divergent evolution
• speciation

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the hind leg bones in a whale are examples of

• homologous structures
• analogous structures
• fossils
• vestigals

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What is the process in which humans breed organisms for certain traits?

• natural selection
• inheritance
• artificial selection
• descent withOUT modification

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