Return to main page

IB 109 Insects and People

First hour exam February 15, 2008


1. What is the floral reward obtained from orchids by orchid bees?

a. pollen b. nectar

c. warmth d. fragrance


2. The man who invented the movable frame hive was

a. L. L. Langstroth b. Gene Robinson

c. Charles Michener d. Warwick Kerr


3. Oxygen enters the body of an insect through openings called

a. tracheae b. book lungs

c. spiracles d. sensilla


4. Which of the following is NOT generally a characteristic of cecidozoans?

a. absence of anus b. reduced sensory apparatus

c. lack of legs d. absence of mouthparts


5. What is the worst health risk posed by cockroach infestation?

a. transmission of germs and food contamination b. entry into auditory canals

c. nibbling of fingernails and hair d. production of allergenic substances in frass


6. The name of the instructor of IB 109 is

a. May Birnbaum b. Mae Berenbaum

c. Mary Berenbaum d. May Berenbaum


7. The function of carminic acid in the life of Dactylopius coccus is

a. as a pheromone to attract males' b. as a defense against predators

c. as an ant attractant d. as a molting hormone


8. What is the name of the order to which manna scale belongs?

a. Hemiptera b. Heteroptera

c. Homoptera d. Hemiptera


9. Where can you find the locust Melanoplus spretus today?

a. throughout Africa and the Middle East b. in Australia

c. in North America d. only in museums—it's extinct


10. The part of a fig tree in which larval agaonid gall wasps develop is the

a. larvifig b. fig fruit

c. caprifig d. root


11. Most stored product pests are related to or descended from

a. predaceous species b. species that feed on in bird or rodent nests

c. aquatic species d. folivorous species



12. Which of the following is NOT the name of a moth that is a commercial source of silk?

a. eri b. tasar

c. muga d. gypsy


13. The pollen-producing organ of a flower is called the

a. stamen b. pollinia

c. stigma d. style


14. Which of the following is a primary pest of grain?

a. flour beetle b. mealworm

c. Indianmeal moth d. pea weevil


15. The two female castes in insect societies are

a. workers and drones b. workers and queens

c. queens and drones c. queens and brood


16. Which of the following honey constituents is a monosaccharide?

a.invertase b. fructose

c. cellulose d. sucrose


17. Which of the following can induce gall formation in plants?

a. mites b. viruses

c. insects d. all of the above


18. Which of the following does NOT characterize members of the phylum Arthropoda?

a. radial symmetry b. metamerism

c. tagmosis d. open circulatory system


19. The cochineal scale is native to

a. the Middle East b. Australia

c. India d. Mexico


20. Where was the Bombyx mori genome sequenced?

a. the United States b. China

c. Japan d. both China and Japan


21. When were skeps in widespread use?

a. in ancient Egypt between 2400 and 600 BC b. in Rome in the first century BC

c. in medieval Europe around 1200 AD d. in modern times, since the 19 th century


22. Pebrine, a disease of silkworms, is caused by

a. old age b. a microbial pathogen

c. pesticide exposure d. poor nutrition


23. Petals are important to flowers because

a. they protect the delicate sexual organs of the plant

b. they serve as advertisement of the plant

c. they help plants to photosynthesize

d. they provide a place for storing starch


24. In the honey bee dance language, what information is conveyed about pollen and nectar sources?

a. the species of flower b. the distance of the floral source

c. the direction of the floral source d. both b and c


25. In holometabolous development, the immature stage is called a(n)

a. nymph b. pupa

c. larva d. imago


26. Which of the following gallmakers is economically beneficial?

a. Aleppo gall b. thistle stem gall fly

c. oak bullet gall d. all of the above


27. What is royal jelly?
a. product of the hypopharyngeal gland of nurse bees

b. sticky material produced from tree resin used to seal cracks in hives

c. a fermented honey wine

d. secretions of abdominal glands used to build cells


28. Species in the genus Reduvius are called “assassin bugs.” This name is an example of

a. entomophilia b. anthropocentrism

c. anthropomorphism d. ethnocentrism


29. In addition to providing a source of dye, for what other reason is the cochineal scale economically important?

a. it pollinates its host the prickly pear

b. it is a biological control agent for its host the prickly pear

c. it is used as a source of chewing gum

d. it is a vector of Pierce's disease


30. The proteinaceous inner layer of silk is called

a. fibrinogen b. fibrin

c. fibroin d. sericin


31. Names not permitted by the International Code of Zoological Nomenclature include

a. names longer than 15 letters b. names referring to living persons

c. names that are obscene d. names that are patronyms


32. Silk fabric production was first practiced in

a. China b. India

c. Greece d. Japan


33. How big is “bee space”?

a. 1/10 to 1/8 inch b. 1/4 to 3/8 inch

c. 1/2 to 1 inch d. 1 to 2 inches


34. Patterns on petals that direct pollinators to nectar are called

a. nectar guides b. nectar signposts

c. nectar roadmaps d. nectar maps


35. You're an entomologist who has just discovered a new species of wasp. What trait would you look for to determine if the species has an advanced eusocial society?

a. size polymorphism b. female reproduction restricted to queens

c. division of labor among workers d. all of the above


36. The firefly lantern produces a substance that interacts with an enzyme in the presence of oxygen to produce light. The enzyme is known as

a. luciferin b. luciferase

c. photocyte d. nitric oxide


37. Phalaenophily is pollination by

a. butterflies b. moths

c. bees d. flies


38. Roughly what percentage of insects are herbivores?

a. 10-20% b. 25-35%

c. 75-90% d. over 90%


39. Milllipede genitalia are located

a. between the second and third leg pairs b. at the end of the abdomen

c. on every abdominal segment d. on the head


40. Carpet beetles and clothes moths share a biochemical ability that allows them to consume animal fur or hair—they can break down

a. chitin b. carminic acid

c. keratin d. cellulose


41. What material in Aleppo galls combines with iron salts to form a blue-black precipitate?

a. gum Arabic b. honeydew

c. tannic acid d. isobutyric acid


42. What percentage of all known living organisms are insects?

a. over 90% b. over 50%

c. approximately 20% d. less than 10%


43. What does the Japanese silkworm eat?

a. Morus alba leaves b. Morus multicaulis leaves

c. fruits of mulberry trees d. > 100 different tree species


44. Next summer, as you're traveling through Morocco, a local farmer who has heard that you've taken an entomology class brings you a grasshopper and asks if you can identify it; it's bright pink in color, about 2.5 inches in length and has long wings relative to the length of its body. What do you think this might be?

a. Schistocerca gregaria var solitaria b . Melanoplus spretus (a freebie)

b. Schistocerca gregaria var gregaria d. Metarhizium anisopliae


45. Figs are pollinated by

a. butterflies b. bumble bees

c. wasps d. beetles


46. Where do bees get wax to build their combs?

a. they manufacture it from tree resins they collect b. they secrete it from glands in the heads of larvae

c. they secrete it from glands in their abdomens d. they gather it from flowers


47. In a caterpillar, the part of the alimentary system where detoxification enzymes are secreted is the

a. buccal cavity b. hindgut

c. midgut d. foregut


48. What inspired Herman Hollerith to invent a device to help with census-taking?

a. spider web b. Jacquard loom

c. silkworm cocoon d. movable frame hive


49. Which is NOT a characteristic of the order Dictyoptera?

a. eggs are carried in oothecae b. chewing mouthparts

c. two pairs of wings, with the first pair thickened d. wings are held upright over the body


50. What is a corbicula?

a. an anther that releases pollen in response to buzzing

b. a device that generates smoke that is used by beekeepers to calm bees

c. a broad flattened leg segment used by bees to carry pollen

d. a specialized part of the digestive tract of a bee used for carrying nectar


51. What occasional health risk can flour beetles present to humans?

a. their excrement can cause vomiting

b. they can infect humans with rodent tapeworms

c. they can damage the intestinal tract when consumed while still alive

d. they produce powerful defensive secretions that induce cardiac arrhythmias


52. Which is TRUE of scorpions?

a. they have biramous appendages b. they have two pairs of antennae

c. they have chelicerae d. they are divided into head, thorax & abdomen


53. Which domiciliary species of cockroach carries its ootheca until just before the eggs hatch?

a. German cockroach b. American cockroach

c. brown-banded cockroach d. Oriental cockroach


54. Receptors that detect light signals are called

a. mechanoreceptors b. olfactory receptors

c. gustatory receptors d. photoreceptors


55. Which of the following is NOT an auchenorrhynchous homopteran?

a. treehoppers b. ground pearls

c. planthoppers d. cicadas


56. The Emergency Prevention System for Transboundary Animals is a program promoting early intervention in stopping outbreaks of locusts run by

a. the Food and Agriculture Organization b. the United States Department of Agriculture

c. the National Science Foundation d. the Gates Foundation


57. What traits characterize cantharophily?

a. fetid odor, purplish colors b. nocturnal anthesis, pale colors

c. bright colors, long thin spurs d. open flowers, abundant pollen


58. Katydids hear with their

a. tymbal b. trochanger

c. tympana d. tarsomere


59. Historically, the most important use for shellac was

a. in pharmaceuticals b. in food production

c. as furniture polish d. in record production


60. Which of the following plant diseases is vectored by leafhoppers?

a. Pierce's disease b. aster yellows

c. alfalfa dwarf d. all are vectored by leafhoppers


61. Which layer of the insect cuticle produces new exoskeleton?

a. basement layer b. cement layer

c. epidermal layer d. wax layer


62. The economic value of bee pollination in the US each year is on the order of

a. one million dollars b. ten million dollars

c. one billion dollars d. ten billion dollars


63. Which of the following is a true fly (member of the order Diptera)?

a. pamakani gall fly b. winter stonefly

c. dobsonfly d. all of the above


64. To produce one pound of wax a colony consumes how much honey?

a. one pound b. ten pounds

c. 50 pounds d. 80 pounds


65. In a honey bee colony, which bees act as nurses?

a. drones b. young workers

c. middle-aged workers d. old workers


66. In which of these orders do imaginal discs occur?

a. Lepidoptera b. Diptera

c. Hymenoptera d. all of the above


67. Which of the following is a way that artificial selection has changed crop plant biology?

a. increasing crop synchrony b. decrease in dispersal mechanisms

c. decreasing allelochemical content d. a-c are all true


68. Which of the following species is NOT a domiciliary species?

a. smokey-brown cockroach b. Australian cockroach

c. speckled feeder cockroach d. Madagascar hissing cockroach


69. Over 70% of all North American gallformers belong to two orders, the

a. Hymenoptera and Coleoptera b. Hymenoptera and Diptera

c. Thysanoptera and Hemiptera d. Diptera and Lepidoptera


70. What can a mayfly subimago do that no other insect can?

a. fly without wings b. molt wings

c. freeze solid and recover d. eat wax


71. What is the enzyme used by honey bees to convert sucrose into fructose and glucose?

a. glucosidase b. maltase

c. invertase d. sugarase


72. Which of the following mortality agents is NOT likely to act in a density-dependent manner?

a. freezing temperatures b. competition for oviposition sites

c. bacterial disease d. predation


73. Carrying capacity is

a. the number of viable eggs or embryos that a particular female can carry

b. the number of individuals that a particular habitat can sustain given its resources

c. the number of tracheal mites that can infest an individual bee

d. the number of hippoboscid flies that can attach to a bat for transportation


74. In which order are all species eusocial?

a. Hymenoptera b. Dictyoptera

c. Isoptera d. Hemiptera


75. Which of the following is NOT a trait defining eusociality?

a. overlapping generations, with offspring helping parents

b. reproductive division of labor

c. cooperative brood care

d. venom production to defend the colony


76. Which of the following structures are modified jointed appendages?

a. mouthparts b. genitalia

c. spinnerets d. all of the above


77. Directed orientation along a chemical gradient is called

a. chemokinesis b. chemotaxis

c. chemical transverse orientation d. chemophobia


78. What exoskeletal layer is disrupted by diatomaceous earth?

a. basement layer b. cement layer

c. epidermal layer d. wax layer



79. About when were crop plants first domesticated?

a. 800,000 years ago b. 80,000 years ago

c. 8,000 years ago d. 800 years ago


80. Which of the following can honey bees see?

a.polarized light b. ultraviolet light

c. visible light d. all of the above


81. What is the proper way to write the scientific name of the grape phylloxera?

a. Daktulosphaira Vitifoliae b. Daktulosphaira vitifoliae

c. Daktulosphaira Vitifoliae d. Daktulosphaira vitifoliae


82. What disease is vectored by glassy-winged sharpshooters?

a. barley yellow dwarf b. Pierce's disease

c. carrot redleaf d. soybean rust


83. A single unit within a compound eye is called a(n)

a. ommatidium b. ocellus

c. omatidium d. ocelli


84. Which is NOT TRUE of crustaceans?

a. they have biramous appendages b. they have two pairs of antennae

c. they have chelicerae d. they molt throughout life


85. Factors that can promote gregarization include

a.declining food quality b. crowding
c. pheromones d. all of the above


86. The carbohydrate polymer that makes up much of the cuticle is called

a. keratin b. chitin

c. collagen d. carminic acid


87. Which is the proper hierarchical sequence, from smallest to largest category?

a. Kingdom, Phylum, Class, Order, Family, Genus, Species

b. Species, Genus, Family, Order, Class, Phylum, Kingdom

c. Kingdom, Class, Phylum, Order, Family, Genus, Species

d. Kingdom, Phylum, Class, Order, Family, Species, Genus


88. What three groups of social insects are most closely related to one another?

a. bees, ants, and termites b. termites, cockroaches, and ants

c. ants, thrips, and aphids d. bees, wasps, and ants


89. Mechanical stimulation to what body part can stimulate gregarization?

a. the front of the head b. the cercus (tail-like structure on abdominal tip)

c. the antennae d. the upper hind leg


90. What plant fluids are consumed by cicadas?

a. xylem b. phloem

c. both xylem and phloem d. nectar


91. Puddling by butterflies is a solution to what nutritional deficiency in plants?

a. sodium b. phosphorus

c. protein d. water


92. According to the fossil record, when did arthropod internal fertilization evolve?

a. four billion years ago b. 400 million years ago

c. 40 million years ago d. 4 million years ago


93. Jumping plant lice (psyllids) are in the order

a. Phthiraptera b. Psocoptera

c. Hemiptera d. Orthoptera


94. Which of the following is the name of an insect family?

a. Apiaceae b. Apterygota

c. Apidae d. Apantesis


95. What happens when a honey bee colony loses its foragers?

a. the colony collapses and dies b. the queen lays drone eggs

c. the colony produces a new queen d. young bees forage precociously


96. The area constituting the usual habitat of Schistocerca gregaria is called the

a. precision area b. precession area

c. recession area d. recission area


97. Which of the following is NOT a wingless hexapod?

a. springtail b. silverfish

c. pseudoscorpion d. all are wingless hexapods


98. Firefly flashing is the result of inhibition of oxygen uptake by mitochondria by

a. NOT b. NO

c. YES d. NI


99. The lac scale is native to

a. the Middle East b. Australia

c. India d. Mexico


100. The function of allelochemicals (secondary metabolites) in plants is

a. to harvest light for photosynthesis

b. to burn fuel to provide energy for the cell

c. to mediate ecological interactions with other organisms

d. all of the above




101. Which of the following items was handed out in class?

a. Mr. Goodbar bites b. Bit O' Honey candy

c. gummi-worms d. Nik-L-Nips wax bottles



102. What is the theme of the 2008 Insect Fear Film Festival?

a. genetically engineered insect fear films b. Japanese insect fear films

c. forensic insect fear films d. animated social insect films


103. Dr. Sydney Cameron, who gave the guest lecture on pollination, is

a. male b. female