1. Chapter 23
Arthropod Review

2. The subphylum of modern arthropods that the spider belongs to
(a) Trilobita (b) Chelicerata (c) Crustacea (d) Uniramia

3. B Chelicerate

4. The major respiratory organs of crayfish are
(a) lungs (b) gills (c) tracheae (d) book lungs

5. B gills

6. Appendages in the spider that inject poison and suck fluids out of the prey
(a) chelicerae (b) spinnerets (c) pedipalps (d) mandibles

7. A) Chelicerae

8. The appendages on the abdomen of the crayfish are called the
(a) Maxillipeds (b) chelipeds (c) walking legs (d) swimmerets

9. D Swimmerets

10. All arthropods have
(a) a cephalothorax (b) spiracles (c) jointed appendages (d) antennae

11. C) Jointed appendages

12. The queen bee secretes a pheromone that prevents the drones from feeding ____ to the larvae
(a) honey (b) testosterone (c) peanut butter (d) royal jelly

13. D royal jelly

14. One difference between centipedes and millipedes is that millipedes
(a) are herbivores (b) are carnivores (c) have fanglike claws (d) are not segmented

15. A are herbivores

16. When a butterfly larva reaches a certain size, it forms a protective case around itself. At this stage, the butterfly is called a
(a) caterpillar (b) pupa (c) cocoon (d) nymph

17. B Pupa

18. What enables male moths to locate female moths at great distances?
(a) Spiracles (b) good eyesight (c) pheromones (d) love

19. C Pheromones

20. An adaptation that causes insects to resemble plants or other animals is called
(a) camouflage (b) metamorphosis (c) mimicry (d) coevolution

21. C Mimicry

22. In arachnids, the excretory organs that filter wastes from body fluids are called
(a) kidneys (b) malpighian tubules (c) trachaea (d) green glands

23. B Malpighian Tubules

24. All crustaceans have a pair of jaw-like appendages called
(a) pedipalps (b) fangs (c) swimmerets (d) mandibles

25. D Mandibles

26. Mouthparts used for chewing

27. Mandibles

28. Process of shedding an old exoskeleton

29. Molting

30. Hard external covering that provides protection and support

31. Exoskeleton

32. Slender projections that contain sensory receptors

33. Antennae

34. Branched tubes that take in oxygen in insects

35. Trachea

36. Removes wastes from the blood of crayfish

37. Green Gland

38. The major respiratory organs of spiders

39. Book Lungs

40. Tiny holes on the abdomen of grasshoppers that take in air

41. Spiracles

42. One of the only organisms in this chapter with one body region

43. Mites

44. The exoskeleton of arthropods is made of this substance

45. Chitin

46. Final Question

47. Name three major external characteristics common to all arthropods.

48. Segmented Body
Jointed Appendages
Exoskeleton

49. Name four organisms that belong to the crustacean classification?

50. Lobster
Crab
Crawfish
Shrimp

51. Describe two advantages and two disadvantages to having an exoskeleton

52. Adv—Offers protection and support, also allows for movement since Muscles attach directly to the exoskeleton
Dis—Limits the size of the organism and also leaves them unprotected when they are molting in order to grow.

53. What behavior of spiders and scorpions makes mating dangerous for the male?.

54. After mating is complete, some spiders and scorpions will kill and the male and then eat them.

55. Give three examples how the mouthparts of insects have been adapted to their environments and how the insect feeds.
Mandibles—are like jaws are used cutting and chewing its food, since most insects eat plants, they need to be able to tear pieces off.
Maxillae—Little appendages on the mouth that hold food so the insect can eat have evolved since insects jointed legs would be unable to hold or bring food to the mouth of the insect.
Maxillaepeds—Similar to the maxillae, they have adapted so the insect can detect if a material is food or not, helping them determine if they should eat.

56. Additional information needed to know for test
Terms—Uniramia, appendage, social insects, telson, and compound eyes.
Know the differences between grasshopper, spider and crawfish
Know advantages and disadvantages of introducing a new insect into an environment to remove unwanted pest.