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Past Midterm - December 2007 (with answers)

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Western University
Biology 1002B
Tom Haffie

BIOLOGY 022 December 2007 Page 1 of 11Circle the best single letter choice for each of the following questions before transferring your answers to your computer sheet 1 Specialized cells such as those in the accompanying drawing were fundamental in the development of terrestrial plants because they A promote gaseous exchange B produce gametes C provide support and routes of transport of materials D anchor the plant E A and D only are correct 2 Biologists studying little brown bats Myotis lucifugus used markreleaserecapture to estimate the numbers of bats visiting an abandoned mineOn 8 August 2000 they caught and banded 228 M lucifugusOne year later 11 August 2001 they caught 211 bats 103 that they had previously bandedThese data allow the researchers to estimate the bat population size at A 980 B 525C 467 D 370 E 300 rt 3 Use the formula N Neand the data below to determine how much the population of Nova t 0 Scotia will exceed that of Newfoundland in 25 years Assume no immigration or emigration and that other population factors remain the same as they are today Population todayr millions Newfoundland 051 00018 Nova Scotia 095 00021 A 267800 B 1067800 C 467800 D 810800 E 367800 4 Which of the following characteristics can be used to recognize any mammal fossil or living A a diaphragm B mammary glands C two occipital condyles D heterodont teeth E xenarthrous vertebrae Code 000Code 000Code 000Code 000Code 000Code 000Code 000Code 000 BIOLOGY 022 December 2007 Page 2 of 115 If 20 couples 20 men 20 women arrived on Easter Island in 1250 AD and on average each couple had 3 children what could the population be in 1400 ADAssume that there was no further immigration or emigration and that each woman had her first child at 15 years of age the second at 18 years of age and the third at 21 years of age rtUse the formula NN ewhere Nis the number at 1400 AD Nis the number in 1250 t0t 0 AD r is the intrinsic rate of increase and g is generation time sum of mothers age at each birth divided by the number of births r is per individual change calculated fromneworiginaloriginalgA 1080 B 2080 C 2580 D 3280 E 4280 6 In this graph panel A represents young leaves pitcher unopened and B represents older leaves pitchers openedThe data indicate thatA insect N occurs only in open pitchers B soil N occurs only in closed pitchers C closed pitchers have less N than open pitchers D open pitchers have more insect N than closed pitchers E these plants do not need insect N 7 The diagrams and photo show the tail vertebrae ofa jerbil Jeholodens top diagramthe Mesozoic beaver Castrocauda middle diagrama Canadian beaver Castor bottom diagrama duckbilled platypus Ornithorhynchus photographThe appearance of these tails demonstratesa close evolutionary relationship between A Jeholodens and Ornithorhynchus B Castor and Castrocauda C Ornithorhynchus and Castor D Castrocauda and Ornithorhynchus E None of A B C or D is correct 8 Which of the following traits characterize a Kselected species A largesize B very fertile many young per reproductive event C shortlived D carnivorous E A and D only are correct Code 000Code 000Code 000Code 000Code 000Code 000Code 000Code 000
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