Mammalogy Fall 2010 - Exam 1 

MULTIPLE CHOICE, SELECT THE BEST ANSWER. 2 points each

  1. The zebras below are an example of _ coloration
  2. For the phylogeny as drawn below, which of the following would represent a paraphyletic group?
  3. Which of the following is most true? Metatherian mammals originated in _______ and then travelled to ____>
  4. You find a mammal carcass which is missing its head. On examining the GI tract you find a large cecum and many coils and loops of small and large intestines. You surmise that in regard to its diet it
  5. The evolution of precise tooth-to-tooth chewing abilities in early mammals was important because
  6. The evolutionary lineage of a species is termed its _____________whereas its development from egg to adult organism is termed its ______________
  7. While working in the tropical rainforest of Peru you discover a monkey that only eats the leaves of the Brazil nut tree. You would expect this monkey to have a digestive system with
  8. Of the following anatomical structures, which is homologous to the wing of a bat?
  9. Respiratory turbinates are associated with endothermy because they:
  10. Mammary glands are thought to have been derived from
  11. The order Diprotodontidia includes/is found:
  12. The binomial system of classification was developed by
  13. On which continent(s) have monotreme FOSSILS been found?
  14. Which mammals have a penis that resembles that of a reptile
  1. On the figure below label the two faunal regions which have the highest degree of endemism in the boxes below and indicate where Wallace’s line is. (5 points)

  2. List from most inclusive (largest) to least inclusive the seven fundamental Linnean categories. (5 points)
  3. What special sense does the mammal in the figure possess? What is this sense used for? (5 points)
  4. Answer one of the following (5 points)
    1. Compare the use of radiotelemetry and PIT tags to monitor mammalpopulations. Include a discussion of the advantages and disadvantages of each.
    2. What is the most important problem in zoology caused by using common names?
    3. Many Australian mammals are syndactylous. What is syndactyly. (2 points) What is its function (2 points)
    4. Pick one family of Australian mammals that is syndactylous. Name it and discuss interesting features that characterize this family and make it interesting (5 points)
    5. Describe the changes for the following characteristics that accompanied the evolutionary transition from plelycosaur to therapsid to mammal. (˝ point)
      1. posture
      2. secondary palate
      3. dentition
      4. mandible
      5. diaphragm
      6. jaw muscles
      7. Answer ONE<and only oneof following (10 points)
        1. Why are kangaroos considered ecomorphs to placental animals such as deer? What is the most significant difference between kangaroos and deer that can give kangaroos a major advantage during times of severe drought?
        2. Characterize and discuss the significance of any two groups of fossil or recent synapsids covered for this exam. DO NOT REPEAT any information covered in any other part of this test!!
        3. Answer ONE and only one of the following (10 points)

          1. Why would a fetus need some sort of protection from the mother’s immune system? How is it accomplished and how does this affect mode of reproduction and length of gestation in (a) monotremes, (b) marsupials and (c) placental mammals?

          2. Describe the changes in jaw structure and hearing apparatus that accompanied the evolutionary transition from pelycosaurs to mammals.

        4. For each of the following pick the mammal that is the best example of the character (2 points each, 12 points total))

          1. ______ Cecum is the primary site of fermentation
          2. ______ Foregut fermenter
          3. ______ Fossorial
          4. ______ Glissant
          5. ______ Myrmecophage
          6. ______ Nectivore
          7.  
          8. A. echidna
          9. B. kangaroo
          10. C. koala
          11. D. phalangers
          12. E. Notioryctes (marsupial mole)
          13. F. Tarsipes (honey possum)