UNIT 3 Exam

Population Biology1. An ecosystems carrying capacity for a population is determined by all of the following factors EXCEPTA. SpaceB. EnergyC. WaterD. FoodE. Climactic events

2. Which type of population distribution would enhance protection from predators?A. Random distribution B. Uniform distributionC. Clumped distributionD. Both a and cE. None of the above

3. When organisms are found to be distributed uniformly throughout an ecosystem it is often because A. They form social groupsB. They are interbreedingC. Resources are not limitedD. They mate for lifeE. They are territorial

4. The human population is currently following a J-shaped curve. This means that the population is growingA. Arithmetically B. Exponentially C. LogisticallyD. SigmoidallyE. Decreasingly

5. Tagging is used to do all of the following exceptA. Track individualsB. Count populationC. Locate an individualD. Monitor movementE. Monitor NumbersNAME ____________________________ Per _______

6. Punching is often used to track and monitor animal population instead of plastic or metal tags because itA. Is more expensiveB. Will not fall off C. Gets caught on shrubsD. Attracts predatorsE. Is less painful

7. The intrinsic growth rate of a populationA. Directly affects environmental resistance B. Causes changes in birth ratesC. Causes changes in death ratesD. Is the maximum rate at which a population may increaseE. All of the above

8. Rapid growth may temporally be observed in a population in response to all of the following EXCEPT A. Elimination of a pollutantB. Elimination of predatorsC. Increase food supplyD. Introduction od a new parasiteE. Introduction into a new habitat

9. The diagram above representsA. Logistic growthB. Exponential growthC. Carry capacityD. Death rateE. Birth Rate

10. A population of rabbits, introduced to an island, has rapid growth for a few years; then its growth slows. The population becomes stable becauseA. The carrying capacity has been reachedB. Environmental resistance declinesC. Immigration is reducedBAD. R declinesE. Bergmans principal takes effect

Population Dynamics11. Developing countries tend to have an ________ age structure diagram A. Rectangular shapedB. Inverted triangleC. Pyramid shapedD. SquareE. Round

12. The following is an example of an animal that exhibits R reproductive strategies.A. Cows B. Rabbits C. ElephantsD. HumansE. Kangaroos

13. An animal that has K reproductive strategies does all of the following exceptA. Have a few, large offspringB. Adults are typically large in sizeC. Give some type if parental careD. Reach reproductive maturity early E. Stabilize near carrying capacity

14. If a population age structure diagram looks like a pyramid, the population isA. Expanding B. Shrinking C. Remaining the sameD. Will expand for one generationE. Slowing

CC

15. Using the figures above, choose the statement that best describes population A.A. This is a developed nationB. Women have access to educationC. Women have access to family planningD. Birth rates are above replacement level fertilityE. The population will double in two years

16. Population B represents a population that isA. Growing quicklyB. Growing slowlyC. Stable D. DecliningE. Not enough data to tell

17. At current growth rates, which country will probably be the most populous in the world after 2050?A. ChinaB. BrazilC. IndiaD. IndonesiaE. United states

18. Which of the following statements about Chinas one child policy are incorrect?A. It has resulted in male dominanceB. It has created a larger middle classC. Families are given economic incentives to have less childrenD. China uses less resources as a resultE. Chinas population has begun to stabilize

19. Education of women has a direct correlation with A. Lower birth ratesB. Higher birth ratesC. Economic declineD. Economic gain E. Womans health

20. ___________ is an example of a developing country and ____________ is and example of a developed country.A. U.S., RussiaB. China, DenmarkC. China, IndiaD. U.S., China E. France, China

Population Size and Impacts21. At the start of a study there were 200 spotted salamanders in an old-growth forest patch in northern California. Over the next year a biologist tracking the salamanders saw that 25 new salamanders hatched and 5 died. Thus r for this year was _______A. 0.1B. 5C. 20D. 25E. 200

22. The most critical factor in controlling human population growth isA. Controlling reproductive lifespanB. Decreasing the age of first birthC. Degreasing the average number of births per womanD. Decreasing infant deathE. Increasing overall wellness for the human race.

23. A population of river otters has a growth rate of r=.2 per year. If the population started at 50 individuals and there is no migration, how many would you expect after one year?A. 10;2B. 52;54C. 60;70D. 60;72E. 70;9024. The total fertility rate is an estimate of A. The number of children that will survive to adulthood.B. The number of years a typical infant will liveC. The number of children each woman will haveD. The number of births her 1000 people per yearE. The percentage of woman in a population that are able to have children

25. If a population of 100 birds increases to 120 birds the following year, r= ________A. .16B. .20C. 1.2D. 2E. 20

26. Population growth rates are high in developing countries becauseA. Infant mortality rates are lowB. Women tend to have children late in lifeC. Family planning is commonD. Children are often an important economic advantageE. All of the above

27. Which developed country has the fastest population growth rate today?A. FranceB. DenmarkC. Nigeria D. United StatesE. Russia

28. At present, Earths human population is A. StableB. DecliningC. Increasing exponentiallyD. Increasing at a constant rate E. Increasing at about 10% a year

29. U.S. citizen have a large ecological footprint because of their high consumption ofA. FoodB. LumberC. Energy resourcesD. SpaceE. All of the above

30. Using the rule of 70, a population growing at 10% would double inA. 7 yearsB. 10 yearsC. 15 yearsD. 17 yearsE. Not enough information provided

31. A countries impact on the environment is influences by I. PopulationII. TechnologyIII. AffluenceA. IB. IIC. IIID. I and IIIE. I, II and III

32. Choose the answer that best represents replacement level fertilityA. 0.5 B. 1.5C. 2.0D. 2.5E. 3.0

33. All of the following are true about Tuberculosis EXCEPT:A. Many people world wide are infected white not all have developed the diseaseB. The disease in associated with airborne transmissionC. Symptoms of the disease include weakness and coughing up bloodD. The disease primarily affects the stomachE. Inappropriate use of antibiotics led to antibiotic resistant strains of the disease

34. A metropolitan region of 100,000 people has 2,000 births, 500 deaths, 200 emigrants and 100 immigrants over a 1 year period. Its population growth rate isA. 1.2 percentB. 1.4 percentC. 1.6 percentD. 1.8 percentE. 2.0 percent

35. A pathogen of an emergent virus that lives in hundreds of species of birds and is transmitted by mosquitos isA. MalariaB. Avian FluC. West Nile D. EbolaE. Yersinia pestis

Ecosystem Diversity 36. What is most significant when determining the diversity of an ecosystem?A. The number of organisms presentB. The number of species presentC. The amount of land the ecosystem coversD. The amount of precipitation an ecosystem receivesE. The interactions between producers and consumers

37. Which of the following measures of biodiversity takes into account the number of species present and the relative abundance of the species present?A. Shannons indexB. Species richnessC. Species evennessD. Biodiversity indexE. Hardy Weinberg Index

38. In the diagram shown, which pair of organisms have the closest evolutionary relationship?A. Leopard and LampreyB. Tuna and TurtleC. Tuna and LeopardD. Turtle and SalamanderE. Lamprey and Turtle

39. Based on the diagram which structure is the most primitive?A. Vertebral ColumnB. Hinged JawsC. Four walking legsD. Amniotic EggE. Hair

40. Which of the following is the best description of evolution?A. The genetic change in an individual over timeB. The genetic change within a population over one generationC. The growth of an individual from birth to adulthoodD. The increased reproduction of a populationE. The genetic change within a population over time

41. Based on the diagram above which organism is the most complexA. AnthophytaB. ConiferophytaC. PteridophytaD. LycopodiophytaE. Bryophyta

42. Based on the diagram above which organism has seeds but no flowersA. AnthophytaB. ConiferophytaC. PteridophytaD. LycopodiophytaE. Bryophyta

43. Which of the following is the best description of evolution?F. The genetic change in an individual over timeG. The genetic change within a population over one generationH. The growth of an individual from birth to adulthoodI. The increased reproduction of a populationJ. The genetic change within a population over time

44. If a bird normally has green feathers produces offspring with blue feathers, this is most likely a result of:A. A genetic mutationB. EvolutionC. Natural selectionD. Natural variationE. Genotypic variation

45. When a population suddenly reduces in size either from habitat loss, natural disaster or other changes in the environment, its genetic variation is affected. When this occurs, it is known as:A. Founder effectB. Geographic isolationC. Genetic driftD. Bottleneck effectE. Mutation

46. Which of the following is the best example of artificial selection?A. Bees pollinating different species of flowers.B. Adaptation of finches to different sources of food on different islandsC. An isolated population of frogs develops a phenotype distinct from the original populationD. Breeding of horses for speedE. A small population has an unusually high percentage of a rare phenotype

47. Which of the following decreases genetic variation?I. Bottle NeckII. MutationIII. Genetic DriftA. IB. IIC. IIID. I and IIE. I and III

48. What occurs when a small group from a population colonizes a new area?A. Artificial selectionB. Founder effectC. Bottleneck effectD. Sympatric speciationE. Genetic drift

49. Which of the following animals is not listed as endangered?A. RhinosB. Bluefin TunaC. GiraffeD. Lions E. Leather back turtle

50. What is the correct order based on the IUCN classification of endangered animalsA. VulnerableEndangered Critically endangered B. VulnerableThreatenedEndangeredC. ThreatenedEndangered Critically endangeredD. Threatened VulnerableCritically endangeredE. ThreatenedEndangeredExtinct