Entomology 462 Name (print) 30 October 2006Exam IA (mid-term)Multiple Guess - Select the BEST answer that completes the sentence or answers the question. Studies haveshown that your first guess is usually the best! Really, there are probably only two answers that may fit so youhave to decide which of these two is best. Remember the “rules of engagement,” - Ask Questions! Good luck._____ 1. Chelicerae are: A. the most primitive of arthropod mouthparts; B. found primarily in theCrustacea; C. pincher-like mouthparts; D. analogous to antennae._____ 2. Spiders are different from opiliones (daddy-long-legs or harvestmen) in that spiders have: A. chelicerae & pedipalps; B. fang-like chelicerae & constriction between the cephalothorax andabdomen; C. cephalothoracic and abdominal tagmata; D. chelate pedipalps._____ 3. Which of the following groups is the largest, in terms of species? A. Dermaptera (earwigs);B. Diptera (flies); C. Aves (birds); D. Coleoptera (beetles)._____ 4. Which of the following could be a correct family name? A. Zorotypus hubbardi Banks; B. Scarabaeidae; C. Scarabaeniae; D. Scaraboida._____ 5. The two systems that are reversed (location) when comparing mammals with insects are the: A. respiratory and digestive; B. reproductive and excretory; C. circulatory (at least the location ofthe heart) and nervous (location of the nerve cord); D. skeletal and excretory._____ 6. When a black cutworm adult flies northward, the main reason it stops flying is: A. it has to waituntil the lactic acid is metabolized; B. it needs more food; C. it runs out of oxygen; D. running intomoths of the opposite sex that it has to check out!_____ 7. A home owner complained that their firewood was infested with baby scorpionsunder some of the bark. They mentioned that these baby scorpions hadn’tdeveloped their tails yet (see image at right)! You explained that they were actually:A. false scorpions (pseudoscorpions); B. larval scorpions; C. nymphal scorpions;D. springtails with enlarged pedipalps._____ 8. Mayflies (Ephemeroptera) are the only group of insects with an incomplete lifecycle that have: A. long cerci as adults; B. aquatic nymphs called naiads; C. very short adult lifespans; D. subimagos, last instar nymphs, that fly to another place to molt one more time into theadult (imago)._____ 9. Moths are often attracted to lights at night because: A. the lights are closer than the stars andmoon; B. of the warmth; C. artificial lights blink at 60 cycles per second; D. artificial lightproduces lots of yellow wave length light. _____ 10. The pupa of an insect with a complete life cycle: A. is the “resting” stage, physiologically; B. isthe form that normally overwinters; C. is also a tagmatum; D. is a stage that typically rearranges allthe cells into new forms._____ 11. Cockroaches are commonly called “primitive” insects. The better term would be to state thatcockroaches are: A. “generalists” in form and activities; B. highly specialized to survive in humanhomes; C. “ancient” because the group is known to be over 300 million years old!; D. at the peakof insect evolution.Name _____ 12. In the cockroach dissection, one of the most obvious structures are the trachea. These appear asshiny white tubes with minute striations (rings). These rings (taenidia) are: A. used to transporthaemolymph; B. spiral thickenings to keep the tubes from crimping; C. an optical illusion causedby the air trapped within the trachea; D. nerve cords._____ 13. During the molting process of most insects: A. the newly molted form rapidly runs around to keepfrom being caught; B. the foregut, hindgut and major tracheal linings are removed; C. the nervesystem is shut down; D. expel as much water, air and food as is possible._____ 14. Which of the following animal groups excrete the same nitrogenous waste that most insects do?:A. birds; B. lizards and snakes; C. spiders; D. all of these._____ 15. The internal structure of an insect that most mimics the human liver (in function) is: A. theproventriculus; B. the fat body; C. one or more of the gastric caeca; D. Malpighian tubules._____ 16. The main reason why female ticks often lay 1000 to 2000 eggs is: A. they are very efficient atusing their blood meal; B. ticks have “risky” life cycles during which they have to leave andrelocate hosts; C. there are lots of predators around; D. they have lots of parasites._____ 17. The main reason you can VERY slowly creep up to an insect is: A. their eyes use a “mosaic”image system; B. the ocelli need to detect motion in order to wake them up; C. they are usuallyinterested in rapidly moving objects; D. their eyes only see shades of gray._____ 18. Male mosquitoes “hear” female mosquitoes by using: A. tympana on their legs; B. tympana ontheir wings; C. hairs on their abdomens; D. their antennae._____ 19. The television Orkin ads about a cockroach “living for weeks without its head,” are: A. correct,especially if the wound is sealed off to stop water loss; B. mainly false as the rest of the bodydepends on the brain located within the head; C. absolutely false because the trachea arise from thehead and as soon as the head is gone, there is no more oxygen supplied to the body; D. normal forthis insect since the females eat the males’ heads during mating._____ 20. Which of the following is NOT a normal adult-immature relationship found in insects with acomplete life cycle? A. beetle-grub; B. thrips-prepupa; C. butterfly-caterpillar; D. sawfly-eruciform larva._____ 21. According to your instructor, the only thing that is not often needed in order to properly diagnosean insect pest of ornamental plants is: A. an actual specimen; B. what the damage looks like; C. the host plant identity; D. the time of year that the damage occurred. _____ 22. A home owner sends in a picture of their oak tree where almost all the leaves are missing from abranch. They also state that there was a pile of little green pellets under the tree in this spot. Fromthis description, you are pretty sure that you are dealing with a: A. leafminer; B. skeletonizer, mostlikely a caterpillar one; C. misuse of herbicides; D. defoliator of some sort._____ 23. On our field trip, we saw a birch dying from bronze birch borer attack. Probably the best way todeal with this borer is to: A. use a systemic insecticide; B. plant a ground cover; C. select resistantspecies of birch; D. apply a preventive, prophylactic spray in August!_____