Question 1

The scientific name of humans is Homo sapiens.What is the genus of humans?

Accepted Answer

A)  Homo
B)  sapiens
C)  Homo sapiens
D)  Animalia
E)  EukaryaF) B) and C)
G) C) and D)

Question 2

Two species of finches found on the same Galapagos island but feeding on different food sources is an example of ____ speciation.

Accepted Answer

A)  allopatric
B)  sympatric
C)  prezygotic
D)  postzygotic
E)  outgroupF) C) and D)
G) B) and C)

Question 3

Bacteria cannot be classified using the biological definition of a species for which reason?

Accepted Answer

A)  The DNA sequences of all bacteria are more than 97% identical.
B)  Bacteria cannot reproduce.
C)  Bacteria are present everywhere and cannot be reproductively isolated from other bacteria.
D)  Bacteria are asexual.
E)  Bacteria do not evolvE.F) B) and E)
G) B) and D)

Question 4

Mules are a distinct species because they produce fertile offspring when mated.

Accepted Answer

A) True 
 B)False

Question 5

If a sheep and goat are mated,their offspring dies as an embryo.This is an example of ____ reproductive isolation.

Accepted Answer

A)  prezygotic
B)  allopatric
C)  sympatric
D)  postzygotic
E)  outgroupF) C) and D)
G) A) and B)

Question 6

Formation of a tetraploid plant species from two different diploid parental species of plants is an example of

Accepted Answer

A)  punctuated equilibrium.
B)  gradualism.
C)  extinction.
D)  a postzygotic barrier to evolution.
E)  a prezygotic barrier to evolution.F) A) and B)
G) C) and E)

Question 7

A small angle for a branch point in an evolutionary tree indicates

Accepted Answer

A)  extinction.
B)  punctuated equilibrium.
C)  gradualism.
D)  convergent evolution.
E)  temporal isolation.F) All of the above
G) A) and E)

Question 8

Postzygotic isolation barriers prevent

Accepted Answer

A)  a hybrid embryo from developing into a fertile adult.
B)  fertilization.
C)  male gametes from joining with female gametes.
D)  All answers are correct.
E)  formation of gametes by one of the parents.F) A) and B)
G) A) and C)

Question 9

Birds use specific songs,coloring,and mating dances to attract mates of their species.This is an example of ____ reproductive isolation.

Accepted Answer

A)  postzygotic
B)  allopatric
C)  prezygotic
D)  sympatric
E)  outgroupF) B) and D)
G) B) and C)

Question 10

Hawthorn maggot flies that breed on native hawthorns and those that breed on introduced European apples can mate in the lab,but rarely mate in the wild.This is an example of ____ reproductive isolation.

Accepted Answer

A)  postzygotic
B)  prezygotic
C)  allopatric
D)  sympatric
E)  outgroupF) A) and E)
G) C) and E)

Question 11

Which of the following is not an example of macroevolution?

Accepted Answer

A)  One species of birds evolves feathers.
B)  One species of birds evolves into many species of birds.
C)  One species of dinosaurs evolves into the first mammal.
D)  One species of mammals evolves into a new species of mammal.
E)  All answers are correct.F) C) and E)
G) C) and D)

Question 12

Some flowers bloom in the spring while others bloom in the summer.This is an example of ____ reproductive isolation.

Accepted Answer

A)  postzygotic
B)  allopatric
C)  sympatric
D)  outgroup
E)  prezygoticF) None of the above
G) A) and B)

Question 13

What is the most inclusive level of the hierarchical classification scheme?

Accepted Answer

A)  domain
B)  phylum
C)  kingdom
D)  genus
E)  speciesF) B) and D)
G) B) and E)

Question 14

The two natural forms of Mimulus studied by scientists looking at the effects of pollinators on speciation were in the same species.

Accepted Answer

A) True 
 B)False

Question 15

Scientists can fill in gaps in defining species by DNA sequence analysis.

Accepted Answer

A) True 
 B)False

Question 16

Closely related plant species that attract different pollinators resulting in reproductive isolation is an example of

Accepted Answer

A)  sympatric speciation.
B)  allopatric speciation.
C)  hybrid inviability.
D)  hybrid infertility.
E)  hybrid breakdown.F) C) and E)
G) A) and B)

Question 17

If you observed that the sperm of a bull could not fuse in a lab dish with the eggs of a cow,you would say that the bull and the cow showed

Accepted Answer

A)  hybrid inviability.
B)  gametic isolation.
C)  temporal isolation.
D)  hybrid infertility.
E)  ecological isolation.F) B) and C)
G) A) and E)

Question 18

A discontinued line in an evolutionary tree indicates

Accepted Answer

A)  extinction.
B)  gradualism.
C)  punctuated equilibrium.
D)  convergent evolution.
E)  temporal isolation.F) None of the above
G) A) and B)

Question 19

Every species has a unique two-word name called the

Accepted Answer

A)  scientific name.
B)  genus.
C)  phylogeny.
D)  evolutionary tree.
E)  cladE.F) A) and B)
G) A) and D)

Question 20

Phylogenetics is (are)

Accepted Answer

A)  the study of evolutionary relationships among species.
B)  the science of describing,naming,and classifying species.
C)  inherited attributes.
D)  features only found in living species.
E)  species unrelated and used for comparison.F) C) and E)
G) A) and B)

Exam 14: Speciation and Extinction

If you observed that the sperm of a bull could not fuse in a lab dish with the eggs of a cow,you would say that the bull and the cow showed

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Postzygotic isolation barriers prevent

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Which of the following is not an example of macroevolution?

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Closely related plant species that attract different pollinators resulting in reproductive isolation is an example of

Correct AnswerverifiedShow Answer

What is the most inclusive level of the hierarchical classification scheme?

Correct AnswerverifiedShow Answer

Phylogenetics is (are)

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Hawthorn maggot flies that breed on native hawthorns and those that breed on introduced European apples can mate in the lab,but rarely mate in the wild.This is an example of ____ reproductive isolation.

Correct AnswerverifiedShow Answer

Birds use specific songs,coloring,and mating dances to attract mates of their species.This is an example of ____ reproductive isolation.

Correct AnswerverifiedShow Answer

If a sheep and goat are mated,their offspring dies as an embryo.This is an example of ____ reproductive isolation.

Correct AnswerverifiedShow Answer

The scientific name of humans is Homo sapiens.What is the genus of humans?

Correct AnswerverifiedShow Answer

The two natural forms of Mimulus studied by scientists looking at the effects of pollinators on speciation were in the same species.

Correct AnswerverifiedShow Answer

Bacteria cannot be classified using the biological definition of a species for which reason?

Correct AnswerverifiedShow Answer

Two species of finches found on the same Galapagos island but feeding on different food sources is an example of ____ speciation.

Correct AnswerverifiedShow Answer

Scientists can fill in gaps in defining species by DNA sequence analysis.

Correct AnswerverifiedShow Answer

Mules are a distinct species because they produce fertile offspring when mated.

Correct AnswerverifiedShow Answer

Some flowers bloom in the spring while others bloom in the summer.This is an example of ____ reproductive isolation.

Correct AnswerverifiedShow Answer

A small angle for a branch point in an evolutionary tree indicates

Correct AnswerverifiedShow Answer

Formation of a tetraploid plant species from two different diploid parental species of plants is an example of

Correct AnswerverifiedShow Answer

A discontinued line in an evolutionary tree indicates

Correct AnswerverifiedShow Answer

Every species has a unique two-word name called the

Correct AnswerverifiedShow Answer

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