LS1W11Exam2BKeyRevised_1

LS1W11Exam2BKeyRevised_1 - LS1 Winter11 VERSION B Name...

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LS1 Winter11 _____ KEY ______________________ 1 of 9 VERSION B • Don’t open your exam until instructed to. • Write your name and student number on every page of the test before handing in the test. You will lose 5 points if you don’t! Enter your name, uid, and which version of the exam you have on the scantron. You will lose 5 points if you don’t! Use a pencil on the multiple choice; pen or pencil on the short answer. • Mark scantrons neatly, one answer per question. Erase changes completely. • Answer written questions in space provided. Do not write on the back, in the margins, or in space allotted for another question. Only answers on the front side of pages will be graded. NO EXCEPTIONS. If you must cross something out and run out of space to answer the question in the space provided, you must request another blank exam page. No electronic devices at your desk, including calculators and cell phones. No food, no bottles with labels. If you need to use the restroom, turn in your exam to a TA. Only one student may leave at a time. You may not leave the room with any electronic devices. Circle your section Monday Tuesday Wednesday YH2343 SH2870 YH2343 SH2870 YH2343 SH2870 1A: 12:00 Mika 2A: 2:00 Mika 1B: 12:00 Brittany 2A: 2:00 Brittany 1C: 10:00 Gary 1D: 12:00 Gary 1E: 2:00 Gary 2C: 10:00 Kyle 2D: 12:00 Jordan 1E: 12:00 Brendan 1F: 8:00 Brendan 2F: 10:00 Brendan 1H: 12:00 Brittany 2H: 2:00 Brittany 1G: 10:00 Jordan 2G: 2:00 Jordan 1I: 12:00 Kyle 2I: 2:00 Kyle • Good luck! I hereby certify that I have neither given nor received any aid on this exam, and that I have read and understand the instructions above. Sign your name here:_____________________________________
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LS1 Winter11 _____ KEY ______________________ 2 of 9 Exam is 180 pts total Part 1 Multiple Choice. 25 questions, 4 pts each 1) Bioprospectors and ethnobotanists search for plants and plant products used for medicines by native cultures. The major function of the medicinal compounds in plants is to _____. A) defend the plant against herbivores B) attract insects and birds to spread seeds and fruits C) attract pollinators for seed dispersal D) defend the plant against microbes 2) Which of these is a major trend in land plant evolution? A) the trend toward a sporophyte-dominated life cycle B) the trend toward smaller size C) the trend toward a gametophyte-dominated life cycle D) the trend toward larger gametophytes 3) Which term best describes an animal that, although generating a significant amount of heat through metabolism, nonetheless does not maintain a constant body temperature? A) homeothermic endotherm B) heterothermic endotherm C) heterothermic ectotherm D) homeothermic ectotherm 4) Among the living vertebrates, flight has evolved independently in birds and bats. A taxonomic grouping that lumps all flying vertebrates into one taxon while excluding all non-flying vertebrates? A) Monophyletic
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This note was uploaded on 03/14/2011 for the course LIFE SCI 1 taught by Professor Halpin during the Spring '11 term at UCLA.

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LS1W11Exam2BKeyRevised_1 - LS1 Winter11 VERSION B Name...

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