2010%20Mid-term%20ver1%20key

2010%20Mid-term%20ver1%20key - BILD 3, F2010. Dr. Kohn...

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BILD 3, F2010. Dr. Kohn Mid-term Page 1 Section/TA _______________________ Name_______________________ Directions: There are 8 pages in this exam, not including this cover sheet. Please put your name on each page. Only exams written in ink will be accepted for regrades. You can use the space below the line on this page as scratch paper. There are 46 questions. Please be sure your exam is complete. Read each question carefully. Think before you write and confine your answer to the space provided. You can use the bottom of this page for scratch, but nothing written on this page will be graded. We will collect exams promptly at 10:50. Version 1 Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Total (Space below this line for scratch)
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BILD 3, F2010. Dr. Kohn Mid-term Page 2 Section/TA _______________________ Name_______________________ 1. (4pts) Contrast anagenesis and cladogenesis? Anagenesis means change without lineage splitting, cladogenesis means lineage divergence. 2. (6pts) List three assumptions of Hardy-Weinberg equilibrium. A. random mating B. large (infinite) population size C. no mutation, no migration, no selection 3. (2pts, circle one answer) The latin binomial Drosophila melanogaster is the scientific name for a fruit fly. The two words specify: a) phylum, species b) class, genus c) genus, species d) class, species 4. (2pts) What type of nutrition do deep sea vent communities rely on for primary production? a) Chemoheterotrophy b) Chemoautotrophy c) Photoautotrophy d) Photheterotryphy 5. (4pts) Suppose two species are allopatric, but have such different mating rituals that even when brought together, they would not mate. Would this fact affect the likelihood that Dobzhansky-Muller incompatibilities would arise? Please explain your answer. No affect. D-M interactions will build up over time so long as populations are not exchanging genes. 6. (4pts) Secondary endosymbiosis occurs when a Prokaryote/Eukaryote (circle one) engulfs a Prokaryote/Eukaryote (circle one). 7. (2pts) What type of organism is responsible for light production in the bobtail squid? a) bacteria b) archaea c) diatom d) dinoflagellate
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BILD 3, F2010. Dr. Kohn Mid-term Page 3 Section/TA _______________________ Name_______________________ 8. (3pts) The Cambrian Explosion refers to: a) the sudden appearance of life on earth b) the diversification of animal forms at the beginning of the Paleozoic era c) the appearance of large mammals after the mass extinction of the dinosaurs d) the appearance of flowering plants 9. (2pts) The humans originated in which era? a) Mesozoic b) Precambrian c) Cenozoic d) Paleozoic 10. (6 pts.) Define paraphyletic group and explain why protists are paraphlyletic. A paraphyletic group contains the common ancestor of all members but not all
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2010%20Mid-term%20ver1%20key - BILD 3, F2010. Dr. Kohn...

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