Exam 6: Organic Evolution

On the Galápagos Islands,the tool-using woodpecker finches modify twigs to pry out grubs.With no true woodpeckers on the Galápagos Islands,this behavior allows it to exploit an untapped food source.However,not all members of this species exhibit this behavior which is learned from watching other finches.Therefore,

For the sake of this genetics problem,consider that right-handedness (RR,Rr)is dominant to left-handedness (rr).A teacher surveys her class of 24 students and finds that six (one-fourth,or 0.25)are left-handed.How many of the remaining right-handed students are likely to be carriers for a left-handedness gene?

Which of the following would result in reproductive isolation?

Compare the ideas of phenotypic gradualism with those of punctuated equilibrium.

As author of the book Principles of Geology,______ presented arguments to support a theory of geological change that the earth was subject to slow but continuous erosion and uplift,following the laws of physics and chemistry similar to what is observed today.

Which of the following is/are true about natural selection?

Stephen Jay Gould's three "tiers" of evolutionary time are

A population of salamanders live along the edge of a north-south mountain range.The populations from the east and west slope eventually join in a low northern pass and interbreed,producing fertile offspring,but they do not circle around the southern edge because of a desert barrier.When glaciers move southward,the populations are pushed south of the northern pass and are isolated.While isolated,the two populations develop enough differences over time that when the glaciers retreat north and the salamanders again share the same pass,they no longer mate at the same time,nor can they produce fertile offspring.These salamanders

Based on the text's coverage of the many factors in micro- and macroevolution,you can conclude that the rate of evolution progresses at

Which statement is NOT true about nonrandom mating?