Chapter 23 – Systematics, Phylogenies, and Comparative Biology
38. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which pair of species shares
the greatest number of derived characters (synapomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
39. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which species has the
greatest number of ancestral character states (pleisiomorpohies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
40. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which trait is least
informative of phylogenetic relationships within the group?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
41. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which species would you
designate as the outgroup?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
42. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which pair of species shares
the greatest number of derived characters (synapomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
43. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which species has the
greatest number of ancestral character states (pleisiomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
44. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which species has the
greatest number of ancestral character states (pleisiomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
45. The table shows the distribution of traits (A-E) in six extant species (1-6). A “0” indicates
the ancestral condition, and a “1” indicates the derived condition. Which pair of species shares
the fewest number of derived characters (synapomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
unfamiliar situation.
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
46. Consider the cladogram shown. Which pair of species shares the greatest number of
derived characters (synapomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
47. Consider the cladogram shown. Based on this cladogram, which species has the greatest
number of ancestral character states (pleisiomorphies)?
Chapter 23 – Systematics, Phylogenies, and Comparative Biology
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
•
What key words does the question contain and what do they mean?
Gather Content
•
What do you already know about cladistics?
Consider Possibilities
•
What other information is related to the question? Which information is most useful?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?