96exam2 Entomology 105
Second Hour Exam
March 25, 1996

1. Two physical attributes that characterize active predators are:

2. Name two orders in which carnivory is always present:

3. What is the historical significance of the vedalia beetle, Rodolia cardinalis?

4. Name two families that primarily contain species that attack sedentary prey:

5. Correct this sentence: Two orders in which many parasitoids are found are Diptera and Lepidoptera.

6. Which of the following defensive compounds is sequestered from hostplants?
a. formic acid in ants
b. cantharidin in blister beetles
c. aristolochic acid in pipevine swallowtails
d. cardiac glycosides in monarch butterflies

7. Encapsulation is one form of defense against ________________.

8. Name two types of insects capable of reflex bleeding:

9. Provide an example of an insect that relies on predator satiation for defense.

10. True or false: Contamination of food with insect parts or excrement is against federal law.

11. If you were stranded on a desert island and had no other food, should you try to eat aposematic insects or cryptic insects? Why?

12. Correct this statement: According to the Old Testament, ants are kosher.

13. Where would you expect to find people snacking on mopane worms?
a. Thailand
b. Mexico
c. South Africa
d. Japan

14. To what order does the Spanishfly, Lytta vesicatoria, belong?

What chemical is responsible for its pharmacological activity?

15. What is maggot therapy?

16. Formic acid is used medicinally as a rubifacient. Where does formic acid come from?

17. Name an order of insects in which all species are ectoparasitic as both immatures and adults:

18. What is not typical of permanent ectoparasites?
a. thick cuticle
b. flattening
c. highly developed locomotory apparatus
d. highly reduced sensory apparatus

19. Match the body fluid with the parasite that consumes it:
a. blood 1. face fly
b. mucus 2. horse fly
c. tears 3. Malaysian moth
20. Two attributes of blood that make it less than ideal as a food for insects are:

21. Provide an example of an arthropod involved in:
a. envenomization
b. allergy
c. canthariasis
d. dermatosis

22. True or false: All adult fleas are wingless.

23. The common name of Xenopsylla cheopis is ________________.

24. What is resilin?

25. What are the three forms of plague?

26. Match the disease with the type of pathogen that causes it:
a. typhus 1. virus
b. plague 2. rickettsia
c. malaria 3. protozoan
d. yellow fever 4. bacterium
27. What contributions did the following individuals make with respect to understanding plague?
a. Alexandre Yersin
b. Charles Rothschild

28. Where is the inveterate focus of Yersinia pestis?
a. Middle East/Central Asia
b. Eastern Europe
c. Pacific Ocean
d. Australia

29. Why was bubonic plague called "black death"?

30. Why is the disease called "yellow fever"?

31. Species in the genus _________ are principal vectors of yellow fever.

32. Match the contribution with the individual:
a. Benjamin Rush 1. Cleaned up Havana and controlled yellow fever epidemic
b. William Crawford Gorgas 2. Developed first yellow fever vaccine
c. Max Theiler 3. First suspected yellow fever transmission by mosquito
d. Carlos Finlay 4. Philadelphia physician who prescribed bloodletting to cure yellow fever
33. Which stages of mosquitoes feed on blood?
a. adult males only
b. adult females only
c. adult males and females
d. all life stages except for egg and pupal stage

34. Is the mosquito or the human the definitive host for Plasmodium?

35. Species in the genus _____________ are principal vectors of malaria.

36. Which of the following is the principal reason for the recent resurgence of malaria worldwide?
a. increase in the number of mosquitoes that can act as vectors
b. decrease in the number of people getting preventative malaria vaccinations
c. decrease in world supply of quinine
d. increase in the number of mosquitoes resistant to insecticides.

37. Where does quinine come from?
a. a soil fungus from Asia
b. bark of a South American tree
c. a chemical laboratory
d. flowers from the Near East

38. Provide an example of an aquatic insect using each method for obtaining oxygen:
a. siphon
b. tracheal gill
c. physical gill
d. plastron

39. Correct this statement: Glassworms use hemoglobin to regulate their buoyancy.

40. The gas present in greatest concentration in a physical gill is:
a. oxygen
b. nitrogen
c. carbon dioxide
d. argon

42. In which two of the following orders are all immature stages aquatic?
a. Neuroptera
b. Trichoptera
c. Odonata
d. Psocoptera 43. Which of the following orders do not have any aquatic representatives?
a. Hymenoptera
b. Lepidoptera
c. Diptera
d. None of the above

44. A salmonfly is a species in the order:
a. Ephemeroptera
b. Plecoptera
c. Diptera
d. Neuroptera

45. What important contribution did Dame Juliana Berners make to flyfishing in 1486?

46. Who wrote "The Compleat Angler" in 1653?

47. One order NOT popular with flytying fishermen is:
a. Ephemeroptera
b. Plecoptera
c. Diptera
d. Embioptera

48. Provide the common name for the following scientific names:
Pediculus humanus humanus
Pediculus humanus capitis
Phthirus pubis

49. List two symptoms of typhus

50. What is a nit?

51. List two morphological characteristics that distinguish lice:

52. Name two diseases vectored by lice:

53. In which of the two following orders are coprophagous species common?
a. Hemiptera
b. Coleoptera
c. Ephemeroptera
d. Diptera

54. Dung beetle contributions to the U.S. economy, through recycling manure and reducing the incidence of gastrointestinal parasites in livestock, amounts to how much annually?
a. $200,000
b. $2,000,000
c. $2,000,000,000
d. $2,000,000,000,000

55. Due to its dungfeeding habits, the house fly has been implicated as a vector of:
a. typhoid
b. dysentery
c. cholera
d. all of the above

56. Among the compounds emanating from dung that are attractive to dung-feeders is a protein breakdown product called
a. menthol
b. cholesterol
c. skatole
d. bombykol

57. In recombinant DNA technology, what does "PCR" stand for?

58. True or false: Transposable elements are abundant in Drosophila melanogaster.

59. The theory of natural selection is associated with:
a. Francis Galton
b. Charles Lyell
c. Charles Darwin
d. Thomas Malthus

60. A change in a gene, either in DNA sequence or in location, is called a ___________.

61. What is the historical significance of Rodolia cardinalis, the vedalia beetle?

62. Correct this statement: In a Batesian mimicry complex, both the model and the mimic are toxic.

63. Certain species of primates produce _____________, an enzyme that allows them to digest insect exoskeletons.

64. Bee venom is widely used in the treatment of:
a. arthritis
b. memory loss
c. heart disease
d. diabetes

65. Mendel's law of ____________ states that alternative forms of a particular factor (gene) remain discrete during the reproductiv eprocess; his second law, the law of _________ __________, states that different factors are inherited independently of one another.

66. Bloodworms are called bloodworms because:
a. they develop in the bloodstream of humans
b. they are free-living maggots that suck blood
c. they contain hemoglobin, a red pigment in their bodies

67. Bloodfeeding insects use two different methods for obtaining blood from a host. A ________ is an example of a vessel feeder and a _________ is an example of a pool feeder.

68.Aedes albopictus was introduced into the United States from:a
a. Africa
b. Asia
c. India
d. Mexico

69. Microgametocytes of Plasmodium are found in:
a. mosquitoes
b. humans
c. both mosquitoes and humans

70. Fleas belong to the order ____________ .

71. True or false: Lice inject the pathogen causing typhus into the feeding site along with saliva.