Question 1

What type of speciation requires a geographic barrier?

Accepted Answer

A)   sympatric speciation
B)   allopatric speciation
C)   both sympatric and allopatric speciation require a geographic barrier
D)   neither sympatric or allopatric speciation require a geographic barrierE) A) and B)
F) B) and D)

Question 2

When a diploid plant produces diploid gametes due to nondisjunction during meiosis, what occurs?

Accepted Answer

A)   Autoploidy is occurring.
B)   An increase in the number of chromosomes above the parent species occurs.
C)   A triploid or tetraploid plant may occur.
D)   All of the answer choices are true.E) A) and D)
F) All of the above

Question 3

Macroevolution is opportunistic, not goal oriented. Explain what this means.

Accepted Answer

Answers may vary. Macroevolution is not ...

Question 4

Adaptive radiation occurs when organisms

Accepted Answer

A)   exploit a variety of new environments.
B)   remain in the same, stable environment.
C)   undergo autoploidy and alloploidy.
D)   occupy the same habitat as their ancestral species.E) A) and C)
F) None of the above

Question 5

Male birds often perform a special dance or set of physical displays to attract females. This would be an example of a behavioral isolation mechanism.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following scenarios would most likely lead to adaptive radiation in a species?

Accepted Answer

A)   An isolated patch of rainforest in the country of Belize is cut down. This changes the abiotic conditions that the birds living in this habitat will be facing if they are to survive.
B)   A mutation occurred in a population of howler monkeys that increases their fitness.
C)   Females start mating more frequently with the males in the group that sing differently than the rest of the group.
D)   Adaptive radiation doesn't occur in populations since species are fixed.E) None of the above
F) A) and D)

Question 7

The morphological species concept involves the identification of certain structural traits, called _______, to distinguish one species from another.

Accepted Answer

A)   analogous traits
B)   homologous traits
C)   diagnostic traits
D)   convergent traitsE) A) and B)
F) None of the above

Question 8

The history of life on Earth can be studied by looking at ___________ instead of _________.

Accepted Answer

A)   macroevolution, microevolution
B)   microevolution, macroevolution
C)   sexual selection, macroevolution
D)   gene flow, microevolutionE) B) and C)
F) A) and D)

Question 9

Scientists developed the ____________ model after their studies of the fossil record revealed that some species appear quite suddenly and then remain essentially unchanged phenotypically for a long period of time.

Accepted Answer

A)   Hardy-Weinberg
B)   Urey-Miller
C)   gradualistic
D)   punctuated equilibriumE) All of the above
F) B) and C)

Question 10

In _________, proteins on the surface of the sperm are not able to bind to proteins on the surface of the egg.

Accepted Answer

A)   temporal isolation
B)   behavioral isolation
C)   mechanical isolation
D)   gametic isolationE) None of the above
F) B) and D)

Question 11

The evolutionary species concept assumes that the members of a species are reproductively isolated.

Accepted Answer

A) True 
 B)False

Question 12

Norway rats (Rattus norvegicus)  and roof rats (Rattus rattus)  are different species. Occasionally, mating occurs if the two species are kept together in captivity. The resulting pregnancies are not successful and the embryos die. This is an example of

Accepted Answer

A)   mechanical isolation.
B)   hybrid sterility.
C)   zygote mortality.
D)   lack of F2 fitness.E) B) and D)
F) All of the above

Question 13

The biological species concept relies mainly on ___________ to define a species.

Accepted Answer

A)   reproductive isolation
B)   morphological differences
C)   the presence of analogous traits
D)   comparative biochemical analysisE) A) and B)
F) A) and C)

Question 14

An insect population lives 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 insects again share the same pass, they no longer mate at the same time, nor can they produce fertile offspring. These insects

Accepted Answer

A)   began as one species and therefore remain one species.
B)   were originally two species and remain two species.
C)   were originally two species but are now one species.
D)   were originally one species but are now two species.
E)   The number of species cannot be determined from the information given.F) B) and D)
G) C) and E)

Question 15

In speciation which of the following is mismatched?

Accepted Answer

A)   allopatric speciation-geographic isolation
B)   sympatric speciation-geographic isolation
C)   adaptive radiation-chance for new species to adapt to new habitats
D)   post-zygotic isolation-hybrid offspring sterilityE) B) and D)
F) B) and C)

Question 16

Reproductive isolation is more likely to occur when

Accepted Answer

A)   hybrids are more fit than members of the parent species.
B)   hybrids are less fit than members of the parent species.
C)   there are no differences between the fitness of the parent species and hybrids.
D)   None of the answer choices are true.E) A) and B)
F) All of the above

Question 17

The Greek root words meaning "together" and "fatherland" are the basis for the term

Accepted Answer

A)   prezygotic.
B)   adaptive radiation.
C)   speciation.
D)   allopatric.
E)   sympatric.F) A) and E)
G) A) and D)

Exam 17: Speciation and Macroevolution

Which of the following scenarios would most likely lead to adaptive radiation in a species?

Correct Answer
verified

The biological species concept relies mainly on ___________ to define a species.

Correct Answer
verified

In speciation which of the following is mismatched?

Correct Answer
verified

When a diploid plant produces diploid gametes due to nondisjunction during meiosis, what occurs?

Correct Answer
verified

What type of speciation requires a geographic barrier?

Correct Answer
verified

Correct Answer
verified

Male birds often perform a special dance or set of physical displays to attract females. This would be an example of a behavioral isolation mechanism.

Correct Answer
verified

Scientists developed the ____________ model after their studies of the fossil record revealed that some species appear quite suddenly and then remain essentially unchanged phenotypically for a long period of time.

Correct Answer
verified

The history of life on Earth can be studied by looking at ___ instead of _.

Correct Answer
verified

The morphological species concept involves the identification of certain structural traits, called _______, to distinguish one species from another.

Correct Answer
verified

Reproductive isolation is more likely to occur when

Correct Answer
verified

Norway rats (Rattus norvegicus) and roof rats (Rattus rattus) are different species. Occasionally, mating occurs if the two species are kept together in captivity. The resulting pregnancies are not successful and the embryos die. This is an example of

Correct Answer
verified

The evolutionary species concept assumes that the members of a species are reproductively isolated.

Correct Answer
verified

The Greek root words meaning "together" and "fatherland" are the basis for the term

Correct Answer
verified

In _________, proteins on the surface of the sperm are not able to bind to proteins on the surface of the egg.

Correct Answer
verified

Macroevolution is opportunistic, not goal oriented. Explain what this means.

Correct Answer
verified
Answers may vary. Macroevolution is not ...
View Answer

Adaptive radiation occurs when organisms

Correct Answer
verified

Exam 17: Speciation and Macroevolution

Which of the following scenarios would most likely lead to adaptive radiation in a species?

Correct AnswerverifiedShow Answer

The biological species concept relies mainly on ___________ to define a species.

Correct AnswerverifiedShow Answer

In speciation which of the following is mismatched?

Correct AnswerverifiedShow Answer

When a diploid plant produces diploid gametes due to nondisjunction during meiosis, what occurs?

Correct AnswerverifiedShow Answer

What type of speciation requires a geographic barrier?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Male birds often perform a special dance or set of physical displays to attract females. This would be an example of a behavioral isolation mechanism.

Correct AnswerverifiedShow Answer

Scientists developed the ____________ model after their studies of the fossil record revealed that some species appear quite suddenly and then remain essentially unchanged phenotypically for a long period of time.

Correct AnswerverifiedShow Answer

The history of life on Earth can be studied by looking at ___________ instead of _________.

Correct AnswerverifiedShow Answer

The morphological species concept involves the identification of certain structural traits, called _______, to distinguish one species from another.

Correct AnswerverifiedShow Answer

Reproductive isolation is more likely to occur when

Correct AnswerverifiedShow Answer

Norway rats (Rattus norvegicus) and roof rats (Rattus rattus) are different species. Occasionally, mating occurs if the two species are kept together in captivity. The resulting pregnancies are not successful and the embryos die. This is an example of

Correct AnswerverifiedShow Answer

The evolutionary species concept assumes that the members of a species are reproductively isolated.

Correct AnswerverifiedShow Answer

The Greek root words meaning "together" and "fatherland" are the basis for the term

Correct AnswerverifiedShow Answer

In _________, proteins on the surface of the sperm are not able to bind to proteins on the surface of the egg.

Correct AnswerverifiedShow Answer

Macroevolution is opportunistic, not goal oriented. Explain what this means.

Correct AnswerverifiedAnswers may vary. Macroevolution is not ...View AnswerShow Answer

Adaptive radiation occurs when organisms

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The history of life on Earth can be studied by looking at ___ instead of _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers may vary. Macroevolution is not ...
View Answer

Correct Answer
verified