BIOLOGY 262, FALL 2001 – TAKE HOMEEXAMINATION #3 (PART 1)Name Date MULTIPLE CHOICE.For the following multiple choice questions circle the letter in front of theresponse that best answers the question or completes the sentence. (20%, 2% each)1. Which of the following is NOT anassumption of scientific philosophy?a. Nothing in nature can be known withcomplete certainty.b. Sense experience reflects reality.c. There is order in the universe.d. Different events can have the samecause.e. None of the above. (All are assumptions ofscientific philosophy)2. Which of the following organisms isheterosporus?a. Chrysanthemum (a flowering plant)b. Mnium (a true moss)c. Polypodium (a true fern)d. Ulva (sea lettuce)e. None of the above3. Diatoms are classified in what kingdom?a. Alveolatab. Archaezoac. Euglenozoad. Stramenopilae. None of the above4. Which of the following have radialsymmetry as adults?a. earthwormsb. flatwormsc. roundwormsd. tapewormse. None of the above (all are not radial)5. Which of the following does NOT have asporophyte in its life cycle?a. Chrysanthemum (a flowering plant)b. Mnium (a true moss)c. Polypodium (a true fern)d. Ulva (sea lettuce)e. None of the above (all have asporophyte)6. Which of the following is TRUE aboutconifer (e.g., a pine) gametophytes?a. They make sperm by meiosis.b. They are the dominant generation.c. They are temporarily diploid.d. They produce the sporangia.e. None of the above (all are false)7. Possession of which of the followingsubstances is a synapomorphy ofkingdom Animalia?a. chitinb. collagenc. glycogend. paramylume. None of the above (none are uniquelypossessed by animals)8. A population of 10,000 squid undergoesexponential growth with a yearly intrinsicrate of increase of 0.5, then what is thesize of the population after 2 years?a. 1,250b. 5,000c. 15,000d. 20,000e. None of the above9. Which of the following is a correctspecies name?a. Taeniab. pisciformisc. pisciformisd. Taenia Pisiformise. None of the above10. Which of the following diseases isspread by the bite of infected mosquitos?a. African sleeping sicknessb. Cholerac. Malariad. Tuberculosise. None of the aboveMATCHING.For the following exercise match the kingdom in the right column with thecorresponding organism in the left column. Each letter may be used more than once or not at all.The number of blanks indicates the number of correct answers for each organism. (6%, 1% each)1. Escherichia coli 2. Plasmodium vivax 3. Saccharomyces cerevisiae (yeast) 4. Schistosoma mansoni 5. Streptococcus pyogenes 6. Trypanosoma gambiense A. AlveolataB. AnimaliaC. BacteriaD. EuglenozoaE. FungiF. StramenopilaFILL-IN-THE-BLANK.For the following exercises write the appropriate word or words in theavailable space, sketch, or label as appropriate. (24%)1. Fill in the blanks below. (6%)The three DOMAINS of life are… , ,and .2. The class that includes the ray-finnedfishes is . (2%)3. Guinea worm is classified in the phylum . (1%)If you were travelling in East Africa, howcould you avoid being parasitized by aGuinea worm? 4. Label one synapomorphy for each of theindicated branches below. (6%) Fungi Porifera Other Animals C B A a. b. c. 5. Label one synapomorphy for each of theindicated branches below. (6%) Chlorophyta Bryophyta Vascular Plants C B A a. b. c.BIOLOGY 262, FALL 2001EXAMINATION #3 (PART 2)Name Date DEFINITIONS.For the following BIOLOGICAL words or phrases define them as accurately andconcisely as possible. (20%, 4% each) Give an example of an organism or taxonomic group thatpossesses any term indicated by an asterisk (*).1. Fairy ring*:2. Notochord*:3. Pollen*:4. Positive control group:5. Schizocoelom*:SHORT ANSWER. Address each question in as concise and lucid a manner as possible. (10%)1. Explain how and why a Phylogenetic Systematist and an Evolutionary Systematist classifyland vertebrates (amphibians, mammals, turtles, lizards & snakes, crocodilians, and birds)differently. (5%) (Feel free but do not feel obliged to use illustrations in your answer.)2. Explain the life cycle of a pork tapeworm. (Feel free but do not feel obliged to useillustrations.) Be certain to identify the hosts and tissues inhabited by each stage. Which lifecycle stage is most dangerous if it ends up living in a human host? (5%)LONG ANSWERS.For the following, address each in as concise and lucid a manner as possible.Do NOT exceed the space provided. (20%)1. You begin a long-term biodiversity study of a pristine tropical-forest covered island in Indonesia. During yourstudy, you inadvertently introduce rats (the Norway rat, Rattus norvegicus) that stowed away on the boat youuse. Use the data below to answer the following (time 0 = your data right before rat introduction, 1 = your dataone year later, etc.). (15%)species 0123species 0123species 0123native rat 14546native bird 16450native fern 112210native rat 278 67 75 3native bird 224 0 0 0native fern 245 46 48 72native rat 312 2 0 0native bird 333 30 35 1native fern 388 63 10 0Norway rat05964native bird 421 24 20 23native fern 433 32 33 0a.) In one short sentence explain what your data suggest about the change in biodiversity on the island.b.) Briefly explain what might have happened to explain the change in numbers of individuals of native fernspecies 4 and native fern species 2?c.) Based upon your knowledge of the fern life cycle, propose one feasible way that the Norway rat mightdirectly affect the numbers of a particular species of fern.d.) Sketch a graph to show the approximate population change of the Norway rats on the island. What type ofpopulation growth is this?2. Compare and contrast coniferophyte and anthophyte seeds. What structures/tissues do theyshare? How do they differ? Be sure to identify the ploidy of all important structures/tissues.(Feel free but do not feel obliged to use illustrations.)
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