Question 1

-Based on the phylogeny shown,the group of species including (2-5) can best be described as a

Accepted Answer

A)  clade.
B)  paraphyletic group.
C)  polyphyletic group.
D)  cladogram.
E)  synapomorphyF) B) and D)
G) A) and C)

Question 2

Assume that the ancestor of this phylogeny had vascular tissue and chlorophyll.If this is true,which answer lists all key traits of a ginkgo?

Accepted Answer

A)  vascular tissue,needles,tree,and chlorophyll
B)  tree and seeds
C)  seeds,tree,vascular tissue,and chlorophyll
D)  needles,tree,and seedsE) None of the above
F) A) and C)

Question 3

-The table shows the distribution of traits (A-E) in six extant species (1-6) .A "0" indicates the ancestral condition,while "1" indicates the derived condition.Based on this data,which species would be considered the outgroup?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) A) and E)
G) All of the above

Question 4

Evidence suggests that the crocodiles are more closely related to the birds than the turtles and snakes.If so,then including crocodiles,but not birds,in the Class Reptilia would make the Class Reptilia

Accepted Answer

A)  a monophyletic group.
B)  a paraphyletic group.
C)  a polyphyletic group.
D)  parsimonious.
E)  not homologous.F) A) and E)
G) A) and D)

Question 5

A group is considered polyphyletic if

Accepted Answer

A)  all members of the group share a common ancestor.
B)  not all descendants of the common ancestor are included.
C)  all members share homoplastic traits.
D)  the group does not contain the most recent common ancestor.
E)  it is the most parsimonious grouping.F) A) and E)
G) A) and B)

Question 6

-Consider the cladogram shown.Which pair of species shares the greatest number of derived characters (synapomorphies) ?

Accepted Answer

A)  1 and 4
B)  2 and 3
C)  2 and 4
D)  6 and 4
E)  6 and 5F) B) and E)
G) None of the above

Question 7

The phylogenetic species concept (PSC) declares that a group is a species if it

Accepted Answer

A)  is reproductively isolated from other species.
B)  has evolved one or more of its own derived characters.
C)  looks different than other species.
D)  is allopatric.
E)  has no synapomorphies.F) B) and E)
G) A) and E)

Exam 23: Systematics,phylogenies,and Comparative Biology

-The table shows the distribution of traits (A-E) in six extant species (1-6) .A "0" indicates the ancestral condition,while "1" indicates the derived condition.Based on this data,which species would be considered the outgroup?

Correct Answer
verified

-Based on the phylogeny shown,the group of species including (2-5) can best be described as a

Correct Answer
verified

Assume that the ancestor of this phylogeny had vascular tissue and chlorophyll.If this is true,which answer lists all key traits of a ginkgo?

Correct Answer
verified

Evidence suggests that the crocodiles are more closely related to the birds than the turtles and snakes.If so,then including crocodiles,but not birds,in the Class Reptilia would make the Class Reptilia

Correct Answer
verified

A group is considered polyphyletic if

Correct Answer
verified

The phylogenetic species concept (PSC) declares that a group is a species if it

Correct Answer
verified

-Consider the cladogram shown.Which pair of species shares the greatest number of derived characters (synapomorphies) ?

Correct Answer
verified

Exam 23: Systematics,phylogenies,and Comparative Biology

-The table shows the distribution of traits (A-E) in six extant species (1-6) .A "0" indicates the ancestral condition,while "1" indicates the derived condition.Based on this data,which species would be considered the outgroup?

Correct AnswerverifiedShow Answer

-Based on the phylogeny shown,the group of species including (2-5) can best be described as a

Correct AnswerverifiedShow Answer

Assume that the ancestor of this phylogeny had vascular tissue and chlorophyll.If this is true,which answer lists all key traits of a ginkgo?

Correct AnswerverifiedShow Answer

Evidence suggests that the crocodiles are more closely related to the birds than the turtles and snakes.If so,then including crocodiles,but not birds,in the Class Reptilia would make the Class Reptilia

Correct AnswerverifiedShow Answer

A group is considered polyphyletic if

Correct AnswerverifiedShow Answer

The phylogenetic species concept (PSC) declares that a group is a species if it

Correct AnswerverifiedShow Answer

-Consider the cladogram shown.Which pair of species shares the greatest number of derived characters (synapomorphies) ?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified