KimseyRoseheimFinalW05key - BIS 1B Final Rosenheim and...

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1 BIS 1B Final. Rosenheim and Kimsey ANSWER KEY Winter 2005 Questions 1-18: Multiple choice questions (4 points each; total 72 points) Select one best answer and mark SCANTRON form using a #2 pencil. Be sure to put your name and student ID on the SCANTRON (and circle answer on the exam). 1. Many characteristics that animals of different species exhibit would seem to be the same or at least similar. Analogous characters a. describe the relationship between the wings of birds and wings of insects b. are exemplified by the wings of birds and the hind-legs of mammals c. include the tails of reptiles and the tails of mammals d. include the external gills of larval lung fishes and the gills of developing salamanders e. share neither function nor origin Answer: a 2. Although the living Cephalochordata may resemble an ancestor it shares with fishes, the ancestor of the fishes differs from cephalochordates because a. cephalochordates lack mesenchyme throughout their life history b. fish move water over their gills largely through the action of cilia c. the ancestor had a head region with a brain; living cephalochordates lack a brain d. cephalochordates are larval tunicates e. cephalochordates lack a notochord Answer: c 3. Extinctions of animal species a. are sufficiently rare that most animal species that have evolved are still present on the earth today b. always occur every 10 million years c. historically occur solely as a result of major global events, such as asteroid impacts or climate changes d. historically have occurred at a relatively constant “background” rate during periods when global environmental conditions have been relatively stable e. do not occur as a result of competition predation or other interactions between animal populations Answer: d 4. The feeding system of most bony fishes living today
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2 a. depends on a highly flexible skull, jaws that maybe projected forward and a lunge and grab behavior which aids swallowing b. depends on rapidly increasing the size of the oral cavity and sucking in a column of water containing the prey c. develops from an ability to school using a highly advanced lateral line system d. is nearly always a form of substrate-particulate or suspension feeding e. depends on a solidly constructed skull with a biting mandible like that of an alligator Answer: b 5. Two genes are said to be “genetically linked” when a. they assort independently during meioses b. they are inherited through a particulate rather than a blending mechanism c. they are located close together on the same autosomal chromosome d. they are derived from the same common ancestor e. their DNA sequences are nearly identical Answer: c 6. The compound hydroxyapatite a. combines iridium and phosphorus in KT boundary layers b. is found in bone and contains calcium and sodium together with numerous waters of hydration c. may be a reservoir of phosphorus for energy production in vertebrates d. is the principal non calcium bearing structural molecule in skeletons of sharks
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KimseyRoseheimFinalW05key - BIS 1B Final Rosenheim and...

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