SmithLifeScience                                             Name __________________ Period _____

Reading Study Guide Chapter 10 Mollusks, Arthropods, and Echinoderms
10-2 Arthropods  (pp.335-342)

Characteristics of Arthropods (p.336-337)

1-4 List the four major groups of arthropods

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Check mark the correct four main characteristics of ALL arthropods.

5. _____ All are invertebrates, no backbone.                 6. _____ All have claws on legs.

7. _____ All have wings.                                                8. _____ All have a segmented body

9. _____ All have jointed appendages (legs)                   10. _____ All have 6-8 legs

11. _____ All have antenna                                            12. _____ All have an external skeleton

Name three appendages that arthropods may have.

13. _________________        14. _________________        15. _________________

16.  In Greek arthros means _______________________.

17.  In Greek  ______________________ means foot" or "leg."

18. What is the definition of an exoskeleton? _____________________________________

Name two ways an exoskeleton is helpful to an arthropod?

19. _______________________________________________________________

20. _______________________________________________________________

21. The process of shedding an outgrown exoskeleton is called __________________.

22. An _______________________ is an appendage attached to the head that contains sense organs.

Crustaceans (p.338-339)

Name three crustaceans.

23. ________________           24. ________________           25. ________________

Crustacean Information

26. _____ number of body segments

27. _____ number of legs

28. _____ number of antenna

29. What are the large antenna used for? ________________________________________

30. What are the small antenna used for? ________________________________________

31. What is the "claw" called? _______________________

32. What do crayfish use to breathe? ________________________________

33. What are krill? __________________________________

34. Name three animals that eat krill. ______________________________________________

35. Crustacean larvae develop into adults by _____________________________, a process in which an animal's body changes dramatically in a short time.

Arachnids (p.340-341)

Name four arachnids.

36.____________     37. _____________     38. _____________     39. _____________

Arachnid Information

40. _____ number of segments             41. _____ number of body segments

42. _____ number of legs                    43. _____ number of antenna

44. Spider venom turns the tissue of their victims into ______________________.

45. What does the dust mite in Figure 14 feed on? ___________________________

46. Where is a scorpion's stinger? _______________________________

47. What disease is spread by deer ticks? ________________________________

Centipedes and Millipedes (p.342)

Match the arthropod with its characteristics.

48. _____ Two pairs of legs on each segment                 A. Centipede

49. _____ One pair of legs on each segment                  B. Millipede

50. _____ Predator that injects venom

51. _____ Scavenger

Extra Credit:
Look at page 337.  Can you draw one of the arthropods?
Draw a crayfish, a spider, a centipede, or a box elder bug below.