BIOLOGY 262, FALL 1998EXAMINATION #1 (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 points, 2 points each)1. Which of the following is (are) anassumption(s) of scientific philosophy?a. Someday all nature will be knownwith certainty.b. The natural world cannot beexperienced through simple senseexperience.c. There is order in the universe.d. Proof requires consistent andsubstantial evidence.e. All of the above.2. The growing season would generally beshortest in which biome?a. Tropical rain forestb. Savannac. Taigad. Temperate deciduous foreste. Temperate grassland3. Which of the following biomes is NOTsubject to frequent fires?a. Desertb. Temperate grasslandc. Savannad. Chapparale. None of the above (all are subject tofrequent fires)4. A species of fish that forms manyseparate tight schools exhibits a pattern of dispersion.a. randomb. clumpedc. dispersedd. uniforme. demographic5. The bottleneck effect causes .a. natural selectionb. mutationc. gene flowd. genetic drifte. assortative mating6. Which of the following is NOT acharacteristic of an estuary?a. Nutrient richb. Breeding grounds for manyorganismsc. Brackishd. Constant conditionse. Found along coastlines7. Which of the following describes anorganism that consumes another organismfrom the inside and kills it?a. Ectoparasiteb. Endoparasitec. Parasitoidd. Predatore. Mutualist8. Which of the following is a characteristicattributed to an R-selected (Opportunistic)species?a. Much parental care givenb. Long life spanc. Many young producedd. Large body sizee. None of the above9. Which of the following is a correctspecies name?a. Canis Familiarisb. familiarisc. Familiarisd. Canis familiarise. Canidae10. Which of the following is NOT anassumption of the Hardy-Weinbergtheorem?a. No mutationb. No migrationc. No random matingd. No natural selectione. None of the above (all are assumptionsof the Hardy-Weinberg Theorem)MATCHING.For the following exercise the answers in the right column with the correspondingterrestrial biome in the left column. Each letter may be used more than once.(7 points, 1 pt. each)1. Tundra 2. Tropical Rain Forest 3. Temperate Deciduous Forest 4. Temperate Grassland 5. Desert A. CanopyB. PermafrostC. Many large animalsD. Dry (low precipitation)E. Thick leaf litterFILL-IN-THE-BLANK.For the following exercises write the appropriate word or words in theavailable space.(23 points)1. Fill in the missing ranks in the LinneanClassification. (4 points)Kingdom Family Species2. Fill in the four Geologic Eras in theboxes below. (8 points) “Age of Mammals” “Age of Reptiles” “Age of Fishes”ß ß3. Geologic Eras are subdivided into (1 pt.) which them-selves contain . (1 pt.)4. Label the three survivorship curvesbelow with the appropriate type. (3points)log%survivorsRelative Age5. Label the trophic levels in the boxesbelow. (6 points)SUNßßßßßßßßßßßßPoints on Exam 1 Part 1 (50 possible)BIOLOGY 262, FALL 1998EXAMINATION #1 (PART 2)Name Date DEFINITIONS.For the following words or phrases define them as accurately and concisely aspossible. (20 points, 4 points each)1. Science:2. Empirical:3. Scala Naturae:4. Evolutionary Species Concept:5. Monophyletic Group:POPULATION PROBLEMS.Complete the following problems using the appropriate equations.(10 points, 5 points each)1. A population of 20000 individuals is growing exponentially and has a yearly intrinsic rate ofincrease of 0.20. What is the size of this population after one year? After two years? Afterthree years? (Be sure to write down any equations that you use.)2. This problem refers to a population that IS at Hardy-Weinberg equilibrium. The gene beingstudied has two alleles represented by “N” and “n.” If the frequency of individuals with thegenotype “nn” is 0.09, then what is the frequency of individuals with the heterozygotegenotype (“Nn”)? (Be sure to write down any equations that you use.)SHORT ESSAYS.For the following essays, address each question in as concise and lucid amanner as possible. Do NOT exceed the space provided. (20 points)1. Why is it wet near the equator and dry near 30° N&S latitude? (Feel free to include drawingsto SUPPLEMENT your answer.) (6 points)2. How does natural selection occur? Explain how natural selection works and what it results in.(7 points)3. How does genetic drift occur? Explain how genetic drift works and what it results in.(7
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