Entomology 462 Name (print) KEY1 November 2004Exam I (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.C____ 1. Which of the following arthropods could NOT be a mandibulate? A. has five pairs of legs; B. thebody is divided into a cephalothorax and abdomen; C. has no antennae; D. has sucking mouthparts.B____ 2. Spiders are generally characterized by having: A. chelicerae & pedipalps; B. fang-like chelicerae& constriction between the cephalothorax and abdomen; C. short antennae and four pairs of legs; D. simple pedipalps and broadly joined cephalothorax & abdomen.E____ 3. Which of the following animals does NOT have a life cycle (stages within its life cycle)? A. clams: B. humans; C. silverfish; D. beetles; E. BOGUS! ALL animals have life cycles (stages)!A____ 4. Which of the following could be a correct species name? A. Zorotypus hubbardi Banks; B. Z.hubbardi; C. hubbardi Banks; D. Zorotypus hubbardi.C____ 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.A____ 6. One of the main reasons why insects don’t “feel the burn” in their muscles after walking or flyingfor exceptionally long periods is because: A. the spiracles of insects take oxygen down to thecellular level, so their muscle rarely goes anaerobic; B. insect muscle is completely different fromhuman muscle tissue; C. insects more rapidly metabolize lactic acid; D. the nerves of insects don’tdetect muscle fatigue (burn).B_____ 7. A home owner faxed in the drawing on the right claiming that they had these littlebaby scorpions under some loose wall paper. You explained that they wereactually pseudoscorpions which are harmless. Most people think that these may besome strange type of scorpion because they have: A. antennae; B. chelatepedipalps; C. a tail with a stinger; D. chelate chelicerae.D____ 8. As a group, Mayflies (Ephemeroptera) are unique by having: A. long cerci as adults; B. aquaticnymphs called naiads; C. very short adult life spans; D. subimagos, last instar nymphs, that fly toanother place to molt one more time into the adult (imago).D____ 9. The “true bug” group of the Hemiptera are generally characterized by: A. suckingmouthparts arising from the front of the head; B. half leathery and halfmembraneous front wings; C. triangle and diamond shapes formed when the wingsare folded; D. all of these. A____ 10. The pupa of an insect: A. is likely the most active stage, physiologically; B. can bethe third tagmatum; C. is usually also the third instar; D. all of the above.B____ 11. Insects with a simple (gradual) metamorphosis are usually easier to control because: A. they aremore susceptible; B. all stages are usually present and thereby killed by a pesticide application; C.they don’t hibernate; D. they can’t develop resistance.Name B____ 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. ring-likethickenings of the exoskeletal lining; B. spiral thickenings of the exoskeletal lining; C. an opticalillusion caused by the air trapped within the trachea; D. ammonia traps.D____ 13. The molting process of insects: A. replaces the old cuticle with a new one formed under the oldone that is “digested away”; B. normally requires the removal of the foregut and hindgut linings;C. is initiated and mediated by hormones; D. all of these.D____ 14. Insects eliminate (excrete) their nitrogenous wastes as: A. ammonia diffused through the cuticle(only in small insects); B. yellow and brown pigments stored in or under the exoskeleton; C. uricacid deposited by the Malpighian tubules into the gut; D. all of these.B____ 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.A____ 16. For sampling and monitoring insect populations in IPM, one of the most important factors youneed to keep in mind while doing this sampling is the insect pest’s: A. dispursion; B. distribution; C. phenology; D. physiology.A____ 17. The compound eyes of insects are best for detecting: A. motion; B. color differences over a widespectrum; C. mates; D. low light images with high definition.D____ 18. Insect tympana can be found on: A. legs; B. wings; C. abdomen; D. all of these, and more!A____ 19. The recent Orkin ads about a cockroach “can live 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.B____ 20. Which of the following is NOT a normal adult-immature relationship found in insects with acomplete life cycle? A. beetle-grub; B. scale-crawler; C. butterfly-caterpillar; D. sawfly-caterpillar.A____ 21. The exoskeleton of insects is: A. an extremely complicated living structure that is often flexible,but not stretchable; B. a simple inflexible and unstretchable covering; C. mainly a water retainingorgan that is shed periodically to renew its surface; D. a complicated but non-living structure thatis folded, not flexible. D____ 22. In order for you to become proficient in identifying pests of ornamentals, your instructor thinks:A. that you will have to spend years learning each and every one of the pests; B. that you will haveto be a student of insect taxonomy in order to properly identify all the pests; C. you will have tobecome good friends with an entomologist that knows all these things; D. you should know theterminology used to describe pest activity (damage), the plants, and the time of year that the pestsare active.A____ 23. Without having an actual specimen of the pest, which of the following categories