Unit III Exam-A Spr08

Unit III Exam-A Spr08 - UNIT III EXAM FORM A BSC 2011-02...

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UNIT III EXAM - FORM A BSC 2011-02 Spring 2008 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) For which two species concepts are anatomical features the primary criterion for determining species identities? 1. biological 2. ecological 3. morphological 4. phylogenetic 5. paleontological 1) _____ A) 3 and 5 B) 2 and 3 C) 1 and 2 D) 4 and 5 E) 1 and 3 2) A biologist discovers two populations of wolf spiders whose members appear identical. Members of one population are found in the leaf litter deep within a woods. Members of the other population are found in the grass at the edge of the woods. What type of reproductive barrier is the most likely to lead to these two populations becoming separate species over time? 2) _____ 3) Which of the following is considered a post-zygotic barrier that serves to maintain reproductive isolation for a species? 3) _____ SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Use the following options 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 4) one species of carnation blooms in April and a second species of carnation blooms in June 4) _________ 5) male fairy shrimp of one species have long antennules to clasp a female when mating and a second species of fairy shrimp has short antennules to clasp females. 5) _________ 6) one species of crickets rapidly "chirp" to attract mates and a seconf species of cricket slowly "chirps" to attract mates 6) _________ 7) males of one species of finch bring nuptial ("wedding") presents of nuts to females prior to mating, whereas males of another finch species bring gifts of over-ripe fruit 7) _________
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8) a loblolly pine grows in rich, organic soils, but a sand pine grows best in well-drained sandy soils along the coast 8) _________ 9) females of one species of blackbird choose mates based on song quality; females of another species of balckbird choose mates on the basis of size 9) _________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 10) Two species of frogs belonging to the same genus occasionally mate, but the offspring do not complete development. What is the mechanism for keeping the two frog species separate? 10) ____
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