BS2007FinalExam

BS2007FinalExam - BIS 1B Final Exam. Lawler and Kimsey...

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Unformatted text preview: BIS 1B Final Exam. Lawler and Kimsey Winter 2007 Questions 1-20: Multiple choice questions (4 points each; total 80 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. A nun with extra time on her hands crosses equal numbers of two strains of peas, one with tall plants and another with unusually short plants. In the first generation she gets all medium-height plants. What should she expect to get if she crosses these offspring with each other? a. all medium-height plants again b. half tall plants and half short plants c. plants that are intermediate between medium and tall d. half medium-height, and one quarter each tall and short e. none of the above 2. Which of the following idea(s) are either Darwins or were promoted by Darwin? a. Organisms have underlying essential forms. b. Life originated once and all living beings are related. c. There is a struggle for perfection. d. Some variation is heritable. e. b and d 3. Larval traits may be retained into the adult stage of an organism via a number of developmental processes. Which of the following is correct? a. neoteny: where development continues after reproductive maturation is attained b. heterochrony: where males and females develop at different rates c. progenesis: where development is on time but maturation of gonads in a juvenile stage stops d. post-displacement: where some particular developmental process is delayed relative to reproductive maturation e. both a and d are correct 4. Which of the following clusters of traits would indicate that the chordates are a single monophyletic group? a. heart, dorsal hollow nerve cord, notochord, post-anal tail b. brain, heart, post-anal tail, notochord c. brain, pharyngeal slits, notochord, post-anal tail, endostyle d. notochord, ventral hollow nerve cord, pharyngeal slits, tail that extends beyond anus e. pharyngeal slits, notochord, dorsal hollow nerve cord, post-anal tail, endostyle 5. Adaptations of fishes for a dense non-compressible environment include a. a swim bladder which is used to store oxygen in deep-dwelling benthic marine fishes b. in some groups- a rapidly extendable and sticky tongue for capturing prey c. a pressure- sensing lateral line system used to detect water pressure waves d. cells called neuromasts, which are sensitive to electrical fields e. fishes possess none of these traits 6. Which of the following specializations for rearing aquatic young in a terrestrial environment does not occur in amphibians? a. eggs retained and hatch in a vocal sac b. aestivation (hibernation) in deserts during times of no water c. tadpoles develop in the skin of the dorsal surface of the female frog 1 ________ d. larval tadpoles hatch from amniotic eggs e. eggs carried on the legs of male frogs 2 ________ 7. It is possible that the extinction of nearly all dinosaur clades may have been caused by a number of different interacting factors. However it seems certainly to be the case that this extinctiondifferent interacting factors....
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This note was uploaded on 05/26/2008 for the course BIS 1b taught by Professor Kimsey during the Spring '08 term at UC Davis.

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BS2007FinalExam - BIS 1B Final Exam. Lawler and Kimsey...

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