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Midterm

midterm from 2010 with answers

8 Pages
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Department
Biology
Course Code
BIO356H5
Professor
Robert Reiez

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Major Features of Vertebrate Evolution February 23rd, 2010
Biology 356 1/8
Name:_____SAMPLE MIDTERM_____ Student #_________________
Section I: Multiple Choice. Please select the best answer. (1 mark each = 25 marks)
1. Which of the following characters evolve within Temnospondylii:
A. reduction in the number of vertebrae.
B. shortening of the skull table.
C. enlargement of the orbits.
D. all of the above.
E. A & B above.
2. Modern predatory sharks (e.g., Great Whites) belong to which elasmobranch clade:
A. Galeomorphi.
B. Batoidea.
C. Squaliformes.
D. Xenacanthiformes
3. The primary components of the gnathostome skull are:
A. chondrocranium.
B. splanchocranium.
C. dermatocranium.
D. All of the above
E. A & B above.
4. Vertebral zygapophyses are present in which of the following groups:
A. Panderichthyida.
B. Tetrapoda.
C. Arthrodira.
D. Actinistia
E. A, B, & C above.
5. Jaw suspension in modern sharks is:
A. autostylic.
B. hyostylic.
C. freakystylic.
D. A & B above
6. In a phylogenetic tree, sister taxa best represent:
A. convergent evolution.
B. a speciation event.
C. an apomorphy.
D. a symplesiomorphy.
E. none of the above.
Overview:
This quiz is worth 25% of your course mark. All multiple choice questions are of equal
value and are 1 mark each; T/F & Fill in Blanks are one mark each; & short answer
questions are 5 marks each (TOTAL MARKS = 60)
www.notesolution.com
Major Features of Vertebrate Evolution February 23rd, 2010
Biology 356 2/8
7. Suppose that in a particular phylogeny, species A, B, C, formed a clade and species D
& E also form a clade. More recent study has shown that the clade A, B, C is paraphyletic.
What does this suggest about the two clades?
A. That at least one member of clade D,E must belong to clade A,B,C.
B. That both species D & E must be included in the clade A,B,C.
C. There was likely rapid evolution in the lineage leading to clade A,B,C.
D. That neither clade A,B,C nor clade D,E represent monophyletic groups.
Which cladogram shows a different evolutionary history compared to the others?
A. 3) is different; 1), 2), & 4) are the same.
B. 2) is different; 1), 3), & 4) are the same.
C. 4) is different; 1), 2), & 3) are the same.
D. All of the cladograms show the same evolutionary history.
E. None of these cladograms shows the same evolutionary history.
9. Referring to cladogram #4 in question 8, which of the following statements is
false?
A. F & G likely share many derived traits.
B. B, E, C, & D form a monophyletic group.
C. A, F & G form a paraphyletic group.
D. A likely shows many ancestral traits.
E. F & G is more closely related to A than it is to the clade formed by B, C, D, & E.
10. If a cladogram contains a polytomy, what is the most likely explanation?
A. There are currently not enough data to resolve the polytomy.
B. Speciation is not complete at this node.
C. The speciation event produced more than two daughter taxa.
D. The cladogram did not correctly identify the polarity of the traits.
8.
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Major Features of Vertebrate Evolution February 23rd, 2010
Biology 356 3/8
11. Which vertebrate group was known only from bizarre, complex teeth until the 1980’s?
A. Anatolepis.
B. Heterostraci.
C. Myxinoidea.
D. Conodonta.
12. Suppose you wanted to construct a phylogeny of the following species: human,
dog & lemur. Which of the following traits represents a synapomorphy?
A. cleidoic egg
B. fur
C. opposable thumb
D. carnivorous
E. can’t tell from the information provided.
13. Suppose you wanted to construct a phylogeny of the following species: human,
dog & lemur. Which of the following traits represents an analogy?
A. cleidoic egg
B. fur
C. opposable thumb
D. carnivorous
E. can’t tell from the information provided.
14. Suppose you wanted to construct a phylogeny of the following species: human,
dog & lemur. Which of the following traits represents an ancestral homology
(symplesiomorphy)?
A. cleidoic egg
B. fur
C. opposable thumb
D. carnivorous
E. can’t tell from the information provided.
15. Which of the following characters diagnoses Neoptergyii:
A. mobile maxilla.
B. mobile premaxilla.
C. loss of enamel from cranial elements.
D. all of the above.
16. Which of the following are members of Placodermi:
A. Acanthodii.
B. Cephalaspida.
C. Heterostraci.
D. B & C above.
E. none of the above.
17. The otic notch of tetrapods was previously thought to house a _______________. It is
currently thought to have housed a ______________________.
A. tympanic membrane, spiracle gill.
B. spiracle gill, tympanic membrane.
C. spiracle gill, spiracle gill.
D. tympanic membrane, tympanic membrane.
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Description
Major Features of Vertebrate Evolution February 23rd, 2010 Biology 356 18 Name:_____SAMPLE MIDTERM_____ Student #_________________ Overview: This quiz is worth 25% of your course mark. All multiple choice questions are of equal value and are 1 mark each; TF & Fill in Blanks are one mark each; & short answer questions are 5 marks each (TOTAL MARKS = 60) Section I: Multiple Choice. Please select the best answer. (1 mark each = 25 marks) 1. Which of the following characters evolve within Temnospondylii: A. reduction in the number of vertebrae. B. shortening of the skull table. C. enlargement of the orbits. D. all of the above. E. A & B above. 2. Modern predatory sharks (e.g., Great Whites) belong to which elasmobranch clade: A. Galeomorphi. B. Batoidea. C. Squaliformes. D. Xenacanthiformes 3. The primary components of the gnathostome skull are: A. chondrocranium. B. splanchocranium. C. dermatocranium. D. All of the above E. A & B above. 4. Vertebral zygapophyses are present in which of the following groups: A. Panderichthyida. B. Tetrapoda. C. Arthrodira. D. Actinistia E. A, B, & C above. 5. Jaw suspension in modern sharks is: A. autostylic. B. hyostylic. C. freakystylic. D. A & B above 6. In a phylogenetic tree, sister taxa best represent: A. convergent evolution. B. a speciation event. C. an apomorphy. D. a symplesiomorphy. E. none of the above. www.notesolution.com
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