1. Phylum Chordata Notochord Nerve chord Tail Pharyngeal slits

2. Evolution of the jaw

3. Phylum Chordata Notochord Nerve chord Tail Pharyngeal slits

4. Subphylum Urochordata

5. Sea Squirts Have notochord as a larvae Sessile as adult

6. Tunicate (Sea Squirt)

8. Slipper Tunicate

9. Stalked Tunicate

10. Subphylum Cephalochordata - Lanceletes (AKA: Amphioxus) notochord

11. Subphylum Cephalochordata -Poorly developed brain - Poorly developed sense organs -Considered an evolutionary link between invertebrates and vertebrates notochord

12. Subphylum Vertebrata Spinal chordSpinal chord Movement accomplished w/ muscles attached to an endoskeletonMovement accomplished w/ muscles attached to an endoskeleton Digestive system w/ liver, digestive glands and pancreasDigestive system w/ liver, digestive glands and pancreas Heart w/ 2-4 chambersHeart w/ 2-4 chambers Blood containing hemoglobinBlood containing hemoglobin Paired kidneysPaired kidneys General body plan consisting of a head, trunk and two pairs of appendages (some are highly modified!)General body plan consisting of a head, trunk and two pairs of appendages (some are highly modified!)

13. Class Agnatha Jawless fishJawless fish Cartilage skeletonCartilage skeleton Gill slitsGill slits

14. Gill Slits

15. Class Agnatha Jawless fishJawless fish Cartilage skeletonCartilage skeleton Gill slitsGill slits No swim bladderNo swim bladder Two chambered heartTwo chambered heart

17. Two Chambered Heart

18. Hagfish

19. Hagfish mouth

21. Lamprey

22. Lamprey mouth

23. Class Chondrichthyes Cartilage skeleton Gill slits Dermal denticles (skin teeth) No swim bladder

24. Prehistoric Sharks

25. Nurse Shark

26. Reef Shark

27. Hammerhead Shark

28. Southern Sting Ray

29. Spotted Eagle Ray

30. Class Osteichthyes Bony skeleton Swim bladder Operculum

32. Nassau Grouper

33. Beaugregory Damselfish

34. Queen Parrotfish

35. Spotfin Butterflyfish

36. Gray Angelfish

37. Moray Eel

38. Seahorse

40. Class Amphibia Aquatic juvenile Terrestrial adult

42. Class Amphibia Aquatic juvenile Terrestrial adult Thin, moist skin Must live in wet habitat Three Chambered Heart

46. Tree Frog

47. American Toad

48. Salamander

50. Salamander Larvae

52. Redspot Newt

53. Class Reptilia Thick, scaly skin Lay eggs on land 4 chambered heart, but ventricles not completely divided

54. Reptiles

55. Corn Snake

56. Ribbon Snake

57. Red Tailed Boa Constrictor

58. Green Iguana

59. Leopard Geckos

60. American Alligator

61. Baby Alligator

62. Hawksbill Sea Turtle

63. Green Sea Turtle

64. Red-Bellied Turtle

65. Class Aves Endothermic (warm blooded) Incubate eggs Feathers Hollow bones Beak 4 chambered heart

68. Birds - Aves

69. Osprey

70. Great Blue Heron

71. Green Backed Heron

72. White Ibis

73. Roseate Spoonbills

74. Brown Pelican

75. Class Mammalia Endothermic (warm blooded) Fur Nurse young 4 Chambered Heart

76. Mammals

77. Subclass Monotremata Lay eggs Nurse young

78. Duck Billed Platypus

79. Platypus Egg Babies

80. Spiny Anteater

81. Subclass Metatheria Marsupial Pouch

82. Kangaroo

83. Baby weighs about 1 gram (0.4 oz)

84. Koala

85. Baby Koala

87. Oppossum

88. Sugar Gliders

89. Subclass Eutheria Placental Mammals

90. Rodents

91. Rodents

93. Rodents

94. Cats

95. Dogs

96. Bats

97. Marine Mammals

98. Manatees

99. Farm animals

100. Elephants