Biol100 f07 McClenaghan exam3

Biol100 f07 McClenaghan exam3 - a ogy 100 : . '..'...

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Unformatted text preview: a ogy 100 : . '..' McClenaghan Spring 2007 r'.“ - -..— _- I . ‘ W913) 1. Write your NAME, RED ID and the COLOR (WHITE or BLUE) of your exam on your Scantron. 2. Mark your answers‘in PENCIL in the appropriate place on the answer sheet AND on your exam. 3. There is only ONE correct answer per question and each one is worth two points (100 points total). I 4. You may keep this exam when you’re finished. 5. Exam keys will be posted on Blackboard shortly after the exam. Scores will also be posted on Blackboard. 6. Do your Own work. 7. GOOD LUCK! 1. The idea that the earth’s geology has been shaped by visible forces like erosion acting over long periods of time is a dOCt ‘ ‘ . II . l as “ UNIFOWMITA‘fi-WN‘M b. cladogenesis c. anagenesis d.catastrophism e. Lamarckism 2. The process of reduces genetic differences between populations and therefore hinders speciation via the allopatric model. one flow b. genetic drift c. natural selection d. mutation e. hybridization 3. The species concept is usually applied to fossil specimens and o anisms that reproduce asexually. a. biological b. phylogenetic c. evolutionary ©pological e. Linnaean 4. The oldest known fossils are from rocks estimated to be about ________ years old. a. 6,000 b. 6 million c. 600 million _ @5 billion e. 4.5 billion 5. The female reproductive structure of a flower is called the . ' @arpel b. sepal c. stamen d. anther e. Iignin Which of the following traits is present in flatworms (Platyhelminthes), arthropods and chordates‘? a. deutersotome develoPment b. true ooelomate condition e. radial symmetry bilateral symmetry e. none of the above 7. “The modern synthetic theory of evolution” is the integration of Darwin’s theory of evolution by natural selection wi" a. Linnaean taxonomy b. modern molecular biology @endelian genetics . d. comparative anatomy e. biogeography 8. is/are often referred to as the “raw material of evolution.” a. Adaptation @enetic variation c. Homologous traits d. Climate e. Fossils 9. Two closely related species of squirrels are observed to occur at different, non-overlapping elevations. This keeps th squirrels from hybridizing and would be an example of ‘ - isolation. abitat _ b. temporal c. behavioral d. post-zygotic e. partial 10. Prokaryotes belong to the Domain Western ‘ . b. Protista c. Bukarya @rchaea @th 3 and d c. a fungus d. a gymnosperm e. a green algae ; Pagelof4 I i2.:?I‘he phrase “multioellular. heterotrophic eukaryote" describes . {'1} '_ G— / a:“anitr1als 1). plants . c. protozoans fungi thaa'ndd - I" V. .: . . 3. _Natuifalselection was independently proposed as a mechanism of evolution by Darwin and 4‘. I 7 . . lamaer b. Lyell c. Malthus _d. Hardy I wanan . ‘ I“ . - - 7 -. 14. A population has alleles C and c present in frequencies of 0.6 and 0.4, respectively. Under Hardy—Weinberg ' conditions, what is the frequency of genot Cc in the population? @ a. 0.6 b. 0.16 .48 d. 0.36 e. 0.0 f 15. Without the Creta us mass extinction, humans probably would have evolved anyway. True or False? a. True @False I6. The most primitive eukaryotes belong to a group called the a. Archaea b. Fungi c. Porifora @Protista e. Cnidaria l7. Pines, firs, spruces and redst belong to what group of plants? a. angiosperms b. bryophytes c. pteroyphytes d. monocots ymnosperms 18. The rapid evolution in animals in which all the major body plans evolved in about 10 million years is called the it explosion”. a. Cretaceous b. Carboniferous @Lambn'an d. Tertiary e. Pre—Cambrian 19. The is the “unit of evolution." a. species b. organism @opulation d. cell e. ecosystem 20. Sea otters once numbered in the 10‘s of thousands along the California coast. Hunting by humans reduced their numbers to about 100 by the early 1900’s. Today’s population of sea otters can be expected to have low levels of genetic variation because of the “ effect." \gene flow \Darwin Hardy-Weinberg ~ 0. founder _ .5 ottleneck 21. The rapid diversification of an unspecialized ancestral group into many specialized descendent groups is called diation b. anagenesis c. diversifying selection d. microevolution e. polymorphism V 22. Amoebas,_ciliates,flagellates and apicomplexans collectively belong to a group called the . a. Fungi b. Diatoms Protozoa d. Porifiora e. Bryophytes 23. In higher plants, specialized tissue called carries the sugar produced by photosynthesis from the l- to the roots other non-photosynthetic parts of the plant. a. xylem phloem c. gymnosperrn d. mycelium e. hyphae «‘ Snails,c_lams and octopuses belong to what phyla? ' . _ a ollusca b. Cnidaria c. Nematoda d. Arthropoda e. Annelida a. Lamarck b. Linnaeus c. Lyell d. Wallace ®Mal thus 26. Under certain conditions, allele and genotype frequencies will remain the same from generation to generation. statement is called “ ” a. the Law of Segregation b. Chargaff’s Rule 6. Darwin's principle @ Hardy-Weinberg Law e. the Linnaeus Law _/ OK comes 1. Ithe taxonomic hierarchy. related orders of organisms are grouped together in the next highest category called a Q b. family c. genus d. phylum c. domain '8. In e roots of plants. atmospheric nitm gent in converted into a fornrdirectly. usable by plants by which of the following groups of organisms? @nematodes b. fungi c. protozoans rokaryOtes e. mosses . . The body of a fungus consists of a large nderground mass called a . 7/"; gametangia b. cilia @ycelium d. c0elom e. septa i e most diverse and successful of all the animals groups are the . l. flatworms b. roundworms ropods d. poriforans e. cnidarians trait. mologous Xanalogous Avestigial d. anagenic e. transitional I. True alse l3. Which of the following is a proper species name under the rules of binomial nomenclature? (@t‘podomys merric'zmi ' ‘ \bison bison \mus Musculus \Homo sapiens e. none of the above. 54. Which of the following organisms would be described as a “unicellular heterotroph?” I g . c. a dinoflagellate d. a sponge Mbrown kelp Fossrl fuels such as goal, 011 and natural gas are predorrunantly denved from the fossiliZed remains of , which flourished during the Carboniferous period. @ems -' b. mosses ' ' c. conifers d. angiospetms e. diatoms KArthropods have a tough, water-impermeable exoskeleton made up of what material? 1. cellulose b. lignin ®hitin d. cartilage e. bone 37. The idea that organisms that have genetically determined adaptations will leaVe more offspring, on average, than organisms without those adaptations is called t. genetic polymorphism gamma selection c. genetic drift 1. gene flow . inheritance of acquired characteristics 38. Of the various forces of evolution, only one consistently operates to better adapt populations to their environments. Which one is it? Qumran selection b. mutation c. genetic drift cl. gene flow e. none of these 39. The wings of ins ts, bats, birds and pterodactyls are examples of structures. a. vestigial alogous c. homologous d. transitional e. sympatric 40. “Strep—throat" is caused by a Spherical bacteria. - . ci b. bacilli c. archaei d. spirochete e. hyphae 41. Penicillin, the first an - iotic, was obtained from a . g ‘ 1. bacteria @ gi c. protist d. angiosperm e. porifomn Page3of4 43. A visit to which group of islands was instrumental in shaping Darwin's views on evolution? a. the Canary Islands f b. the Hawaiian Islands 0. the Sandwich Islands _ d. the Azores ‘ @e Galapagos Islands ‘44 Cystic fibrosis 15 a condition gle gene. The frequency of the cystic fibrosis . allele in the U ‘ population is 0.1. What proportion of the US. population diSplays the normal phenotype? a. 0.01 0.99 . . . C. can tsay With only thrs information 45. ' ‘ isolation by . a. habitat isolation b. behavioral isolation ®hybrid inviability d. hybrid sterility e. temporal isolation p have structures that :1 structures called “blades”. that appear similar to and not common ancestry. a. cladogenesis b. directional selection ®onvergent evolution d. genetic drift 6. endosymbiosis ppear similar to structures found in plants. For example, kelp hav “leaves” of true plants. However, these similarities are the result of m 47. The evolution has allowed Angiosperms to be the most diverse and successful plant group. . a. roots eeds c. photosynthesis the flower) e. leaves " 48. My sister, Kathi, was parasitized as a small child after eating my mud pics by members of what phyla?- a. Cnidaria b. Platyhelminthes ®Nernatoda d. Gastropoda ' 49. The extinct hominid species Homo erecms speciated and gave rise to only a single descendent species, Homo sapiens Given this information. this appears to be an example of ' agenesis b. radiation c. cladogenesis d. polymorphism e. endosymbiosis \ 50. The theory that eukaryotic chiorop r prokaryotes is called the theory of ‘\ ndosymbiosis b. all0patric speciation = e. acquired characteristics lasts and mitochondria originated as small prokaryotes living inside larger c. macroevolution . convergent evolution ...
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This test prep was uploaded on 02/15/2008 for the course BILD 100 taught by Professor Mcclenaghan during the Fall '07 term at UCSD.

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Biol100 f07 McClenaghan exam3 - a ogy 100 : . '..'...

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