23-24 - 2006 APBIO Ch 23, 24 Multiple Choice Identify the...

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2006 APBIO Ch 23, 24 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Use the options below to answer the following questions. For each description of reproductive isolation, select the option that best describes it. Options may be used once, more than once, or not at all. A. gametic B. temporal C. behavioral D. habitat E. mechanical ____ 1. two species of meadowlarks with different mating songs a. A b. B c. C d. D e. E ____ 2. two species of trout that breed in different seasons a. A b. B c. C d. D e. E ____ 3. two species of orchids with different floral anatomy a. A b. B c. C d. D e. E The following questions refer to this hypothetical situation: A female fly, full of fertilized eggs, is swept by high winds to an island far out to sea. She is the first fly to arrive on this island, and the only fly to arrive in this way. Thousands of years later, her numerous offspring occupy the island, but none of them resemble her. There are, instead, several species each of which eats only certain type of food. None of the species can fly, for their flight wings are absent, and their balancing organs (i.e., the halteres) are now used in courtship displays. The male members of each species bear modified halteres that are unique in appearance to their species. Females bear vestigial halteres. The ranges of all of the daughter species overlap. ____ 4. If these fly species lost the ability to fly independently of each other (the result of separate mutation events in each lineage), then the flightless condition in these species could be an example of a. species selection. b. adaptive radiation. c. sexual selection. d. habitat differentiation.
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e. allometric growth. ____ 5. Which of these events seem(s) to have occurred among the fly populations on the island? 1. cladogenesis 2. adaptive radiation 3. sympatric speciation a. 1, 2, and 3 b. 1 and 2 only c. 2 only d. 3 only e. 1 only ____ 6. If the foods preferred by each species are found on different parts of the island, and if the flies mate and lay eggs on their food sources, regardless of the location of the food sources, then the speciation events involving these fly species may have been driven, at least in part, by which of the following? a. species selection b. genetic drift c. allopolyploidy d. habitat differentiation e. autopolyploidy ____ 7. In each fly species, the entire body segment that gave rise to the original flight wings is missing. The mutation(s) that led to the flightless condition probably affected the ____ genes, making the initial mutants examples of ____. a. exoskeleton; exaptations b. Hox ; complete metamorphosis c. thorax; complete metamorphosis d. Hox ; adaptive radiants e. thorax; exaptations ____ 8. If the males' halteres have species-specific size, shape, color, and use in courtship displays, and if the species' ranges overlap, then the speciation events may have been driven, at least in part, by which of the following? a.
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This note was uploaded on 02/26/2011 for the course BIO 104 taught by Professor Smith during the Spring '11 term at Saddleback.

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23-24 - 2006 APBIO Ch 23, 24 Multiple Choice Identify the...

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