1. Wake-up List and differentiate between the three groups of worms.
Which group of worms developed a one way digestive system first?
Which group of worms developed a specialized nervous system first?

2. Arthropoda

3. Basic Characteristics
1. Segmented body: Fewer than worms

4. Basic Characteristics
2. Jointed appendages; modified for movement, feeding, etc.

5. Basic Characteristics
3. Exoskeleton: external skeleton

6. Exoskeleton does not grow with the insect; needs to molt (shed their skin) when they grow
(Video)

7. External Anatomy
Antennae
Head
Thorax
Abdomen
Legs

8. Diversity of Body Shapes

9. Feeding/Digestion
One way digestion; two openings

10. Herbivore
Consume Producers

11. Consume consumers (meat)
Carnivore
Consume consumers (meat)

12. Consume Producers and Consumers
Omnivore
Consume Producers and Consumers

13. Filter Feeders
Consume food particles that is suspended in the water; strain out the food

14. Consume dead organic matter
Detritivores
Consume dead organic matter

15. Organisms that attach themselves to another; consume “them”
Parasites
Organisms that attach themselves to another; consume “them”

16. Consume food that others have left behind
Scavengers
Consume food that others have left behind

17. Respiratory

18. Oxygen enters through small opening called spiracles
Respiratory
Tracheal Tubes: Tubes that allow the exchange of oxygen and carbon dioxide;
Oxygen enters through small opening called spiracles
Watch Video

19. Book Lung
Each book lung consists of hollow flat plates. Air bathes the outer surface of the plates and blood circulates within them, allowing the exchange of gases.

20. Extract dissolved oxygen from the water or land
Gills
Extract dissolved oxygen from the water or land
(Watch Video)

21. * Watch Video

22. Circulatory
Open system

23. * Watch Video
Have a developed heart; Insect blood, properly called hemolymph, flows freely through the body cavity and makes direct contact with organs and tissues.

24. Internal fertilization
Reproduction
Internal fertilization

25. Metamorphosis: “Change”
Complete: Egg – larvae - Pupae – Adult
(Watch Video)

26. Incomplete: Egg – Nymph - Nymph - Adult
Metamorphosis
Incomplete: Egg – Nymph - Nymph - Adult

27. Diversity: Crustacea

28. As you view the slides of Crustacea, write down some general characteristics

29. Daphnia

30. Rotifer

31. Lobster

32. Crab

33. Crab

34. Shrimp

35. Barnacle

37. Habitat
Aquatic

38. Habitat
Terrestrial

39. General Characteristics

40. Diversity: Chelicerates

41. As you view the slides of Chelicerates, write down some general characteristics

42. Spiders

49. Scorpion

52. Horseshoe Crab

55. General
Characteristics

56. Diversity: Uniramia

57. As you view the slides of Uniramia, write down some general characteristics

58. Beetle

60. Praying Mantis

61. Butterflies

62. Honey Bee

63. Ants

64. Millipede

65. General
Characteristics