Question 1

Sympatric speciation in plants,as a result of ________,is well documented.

Accepted Answer

A)  any type of geographic barrier
B)  a series of islands off of a mainland
C)  polyploidy
D)  mountain rangesE) A) and B)
F) All of the above

Question 2

The ________ was proposed to help explain speciation that appears in the fossil record.

Accepted Answer

A)  evolutionary species concept
B)  morphological species concept
C)  phylogenetic species concept
D)  genetic divergence species conceptE) A) and B)
F) B) and C)

Question 3

Female Anolis distinguish males of their species by the color of their dewlap,a colorful flap of skin in the neck region.This is an example of

Accepted Answer

A)  a postzygotic isolating mechanism.
B)  a prezygotic isolating mechanism.
C)  temporal isolation.
D)  hybrid inviability.E) C) and D)
F) A) and D)

Question 4

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) A) and C)
F) All of the above

Question 5

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

Accepted Answer

Answers may vary.Macroevolution is not d...

Question 6

Isolating mechanisms that prevent reproductive attempts or make it unlikely that reproductive attempts will be successful are referred to as

Accepted Answer

A)  prezygotic reproductive isolating mechanisms.
B)  pregametic isolating mechanisms.
C)  postzygotic isolating mechanisms.
D)  postgametic isolating mechanisms.
E)  None of the answer choices are correct.F) C) and E)
G) B) and C)

Question 7

________ prevent hybrid offspring from developing or if the hybrid is born,it is infertile.

Accepted Answer

A)  Prezygotic reproductive isolating mechanisms
B)  Temporal isolation mechanisms
C)  Postzygotic isolating mechanisms
D)  Two of these are correct.
E)  None of the answer choices are correct.F) B) and C)
G) A) and E)

Question 8

Two species of the garter snake in the genus Thamnophis are found in the same geographic region.These species are not likely to meet and attempt to reproduce because one lives mainly in the water,while the other species spends most of its time on land.This is known as

Accepted Answer

A)  behavioral isolation.
B)  habitat isolation.
C)  temporal isolation.
D)  zygote mortality.E) B) and D)
F) A) and D)

Question 9

Which of the following scenarios is explained by adaptive radiation?

Accepted Answer

A)  The average running speed of a cheetah increases each generation due to the gazelles getting faster.
B)  The toxicity level of the bark of a species of plant increases due to constantly being attacked by aphids.
C)  The color pattern of the moths living in the woods of England become darker as the levels of pollution increase during the Industrial Revolution.
D)  All of these are examples of adaptive radiation.E) B) and D)
F) B) and C)

Question 10

All of the following statements concerning the evolutionary species concept are true EXCEPT

Accepted Answer

A)  it requires that the members of a species share a distinct evolutionary pathway.
B)  it relies on identification of certain morphological traits to distinguish one species from another.
C)  abrupt changes in traits are indicative of the evolution of a new species in the fossil record.
D)  an evolutionary "family tree" is used to identify species based on a common ancestor.E) B) and C)
F) A) and B)

Question 11

In speciation which of the following is mismatched?

Accepted Answer

A)  allopatric speciation-geographic isolation
B)  sympatric speciation-absence of a geographic barrier
C)  adaptive radiation-chance for new species to adapt to new habitats
D)  postzygotic isolation-hybrid offspring sterility
E)  None of the answers are mismatched.F) D) and E)
G) A) and C)

Question 12

Study the chart of the mating seasons of these five species of frogs.What factor keeps the frogs reproductively isolated? What other factors may be involved?

Accepted Answer

Answers may vary.This chart obviously de...

Question 13

A ________ is the first cell that results when an egg is fertilized by a sperm.

Accepted Answer

A)  spermatogonium
B)  gastrula
C)  zygote
D)  blastulaE) A) and D)
F) A) and C)

Question 14

Male fireflies are recognized by females of their species by their flash pattern,while male crickets are recognized by females of their species by their chirping.These are examples of

Accepted Answer

A)  behavioral isolation.
B)  habitat isolation.
C)  temporal isolation.
D)  mechanical isolation.E) A) and C)
F) A) and B)

Question 15

The Acadian flycatcher,Willow flycatcher,and Least flycatcher are morphologically very similar,but live in different habitats and do not reproduce with one another.Which species concept would be the most useful in determining if these flycatchers are different species? Explain.

Accepted Answer

The biological species concept provides ...

Question 16

The three processes that are commonplace throughout the evolutionary history of a species and illustrate that macroevolution is not goal-directed are speciation,diversification,and extinction.

Accepted Answer

A) True 
 B)False

Question 17

The history of life on Earth can be studied by looking at

Accepted Answer

A)  macroevolution.
B)  microevolution.
C)  sexual selection.
D)  gene flow.E) A) and D)
F) B) and C)

Question 18

Reproductive isolation

Accepted Answer

A)  means there is no gene flow between two groups of organisms.
B)  is necessary for species to remain separate.
C)  is maintained by certain prezygotic and postzygotic barriers.
D)  All of the choices are correct.
E)  None of the choices are correct.F) B) and C)
G) A) and E)

Question 19

The ranges of the red-legged frog and the yellow-legged frog overlap in California.The red-legged frog (Rana aurora,left) breeding season lasts from January to March.The closely related yellow-legged frog (Rana boylii,right) breeds from late March through May.What type of reproductive isolating mechanism is mainly responsible for keeping these two species separate?

Accepted Answer

A)  habitat isolation
B)  behavioral isolation
C)  temporal isolation
D)  mechanical isolation
E)  gamete isolationF) A) and E)
G) A) and D)

Question 20

Which figure depicts a punctuated equilibrium model of evolution?

Accepted Answer

A)  Figure A
B)  Figure BC) A) and B)
D) undefined

Exam 17: Speciation and Macroevolution

The Acadian flycatcher,Willow flycatcher,and Least flycatcher are morphologically very similar,but live in different habitats and do not reproduce with one another.Which species concept would be the most useful in determining if these flycatchers are different species? Explain.

Correct Answer
verified
The biological species concept provides ...
View Answer

The history of life on Earth can be studied by looking at

Correct Answer
verified

The three processes that are commonplace throughout the evolutionary history of a species and illustrate that macroevolution is not goal-directed are speciation,diversification,and extinction.

Correct Answer
verified

Which figure depicts a punctuated equilibrium model of evolution?

Correct Answer
verified

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

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

The ________ was proposed to help explain speciation that appears in the fossil record.

Correct Answer
verified

All of the following statements concerning the evolutionary species concept are true EXCEPT

Correct Answer
verified

Reproductive isolation

Correct Answer
verified

Which of the following scenarios is explained by adaptive radiation?

Correct Answer
verified

In speciation which of the following is mismatched?

Correct Answer
verified

Sympatric speciation in plants,as a result of ________,is well documented.

Correct Answer
verified

Correct Answer
verified

Female Anolis distinguish males of their species by the color of their dewlap,a colorful flap of skin in the neck region.This is an example of

Correct Answer
verified

Isolating mechanisms that prevent reproductive attempts or make it unlikely that reproductive attempts will be successful are referred to as

Correct Answer
verified

Study the chart of the mating seasons of these five species of frogs.What factor keeps the frogs reproductively isolated? What other factors may be involved?

Correct Answer
verified
Answers may vary.This chart obviously de...
View Answer

________ prevent hybrid offspring from developing or if the hybrid is born,it is infertile.

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

A ________ is the first cell that results when an egg is fertilized by a sperm.

Correct Answer
verified

Male fireflies are recognized by females of their species by their flash pattern,while male crickets are recognized by females of their species by their chirping.These are examples of

Correct Answer
verified

Two species of the garter snake in the genus Thamnophis are found in the same geographic region.These species are not likely to meet and attempt to reproduce because one lives mainly in the water,while the other species spends most of its time on land.This is known as

Correct Answer
verified

Exam 17: Speciation and Macroevolution

The Acadian flycatcher,Willow flycatcher,and Least flycatcher are morphologically very similar,but live in different habitats and do not reproduce with one another.Which species concept would be the most useful in determining if these flycatchers are different species? Explain.

Correct AnswerverifiedThe biological species concept provides ...View AnswerShow Answer

The history of life on Earth can be studied by looking at

Correct AnswerverifiedShow Answer

The three processes that are commonplace throughout the evolutionary history of a species and illustrate that macroevolution is not goal-directed are speciation,diversification,and extinction.

Correct AnswerverifiedShow Answer

Which figure depicts a punctuated equilibrium model of evolution?

Correct AnswerverifiedShow Answer

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

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

The ________ was proposed to help explain speciation that appears in the fossil record.

Correct AnswerverifiedShow Answer

All of the following statements concerning the evolutionary species concept are true EXCEPT

Correct AnswerverifiedShow Answer

Reproductive isolation

Correct AnswerverifiedShow Answer

Which of the following scenarios is explained by adaptive radiation?

Correct AnswerverifiedShow Answer

In speciation which of the following is mismatched?

Correct AnswerverifiedShow Answer

Sympatric speciation in plants,as a result of ________,is well documented.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Female Anolis distinguish males of their species by the color of their dewlap,a colorful flap of skin in the neck region.This is an example of

Correct AnswerverifiedShow Answer

Isolating mechanisms that prevent reproductive attempts or make it unlikely that reproductive attempts will be successful are referred to as

Correct AnswerverifiedShow Answer

Study the chart of the mating seasons of these five species of frogs.What factor keeps the frogs reproductively isolated? What other factors may be involved?

Correct AnswerverifiedAnswers may vary.This chart obviously de...View AnswerShow Answer

________ prevent hybrid offspring from developing or if the hybrid is born,it is infertile.

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

A ________ is the first cell that results when an egg is fertilized by a sperm.

Correct AnswerverifiedShow Answer

Male fireflies are recognized by females of their species by their flash pattern,while male crickets are recognized by females of their species by their chirping.These are examples of

Correct AnswerverifiedShow Answer

Two species of the garter snake in the genus Thamnophis are found in the same geographic region.These species are not likely to meet and attempt to reproduce because one lives mainly in the water,while the other species spends most of its time on land.This is known as

Correct AnswerverifiedShow Answer

Correct Answer
verified
The biological species concept provides ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified
Answers may vary.This chart obviously de...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified