1. Kingdom Animalia

2. Types of Symmetry Radial Bilateral Asymmetrical – No symmetry

3. Phylum Porifera Pore bearing

5. Phylum Porifera Pore bearing Asymmetrical Sessile Skeleton made of Spicules or Spongin

6. Spicules Made of CaCO 3

7. Spicules Made of SiO 2 Deep sea sponge called “glass sponge”

8. Spongin – protein fibers

9. Phylum Porifera Pore bearing Asymmetrical Sessile Spicules or Spongin Filter feeder

11. Collar Cells – Ingest food, move water Spicules – Structure & Defense Pore – Allows water in Flagella – Moves water Osculum – excurrent opening Collar cells

12. Phylum Porifera Pore bearing Asymmetrical Sessile Spicules or Spongin Filter feeder Aggregation of specialized cells. No tissues. No Circulatory System No Digestive system External, sexual reproduction; often hermaphroditic

15. Phylum Porifera Pore bearing Asymmetrical Sessile Spicules or Spongin Filter feeder Aggregation of specialized cells. No tissues. No Circulatory System No Digestive system External, sexual reproduction; often hermaphroditic Reproduces asexually by budding

17. Phylum Ctenophora Common name – comb jellies 8 comb rows8 comb rows Sticky cellsSticky cells Biradial symmetryBiradial symmetry Has two layers of tissueHas two layers of tissue

19. Phylum Ctenophora Common name – comb jellies 8 comb rows8 comb rows Sticky cellsSticky cells Biradial symmetryBiradial symmetry Two tissue layersTwo tissue layers Mouth opens to a branched gut, complete digestive systemMouth opens to a branched gut, complete digestive system

21. Phylum Ctenophora Common name – comb jellies 8 comb rows8 comb rows Sticky cellsSticky cells Biradial symmetryBiradial symmetry Two tissue layersTwo tissue layers Complete digestive systemComplete digestive system Often bioluminescentOften bioluminescent

23. Phylum Ctenophora Common name – comb jellies 8 comb rows8 comb rows Sticky cellsSticky cells Biradial symmetryBiradial symmetry Two tissue layersTwo tissue layers Complete digestive systemComplete digestive system Often bioluminescentOften bioluminescent Most are hermaphrodites – external sexual fertilization, sperm & egg are released through mouthMost are hermaphrodites – external sexual fertilization, sperm & egg are released through mouth

24. Larvae

25. Phylum Ctenophora Common name – comb jellies 8 comb rows8 comb rows Sticky cellsSticky cells Biradial symmetryBiradial symmetry Two tissue layersTwo tissue layers Complete digestive systemComplete digestive system Often bioluminescentOften bioluminescent Most hermaphrodites –Most hermaphrodites – external sexual fertilization No respiratory systemNo respiratory system No circulatory systemNo circulatory system Nerve Net (no centralization)Nerve Net (no centralization)

27. Statocyst

29. Benthic ctenophore

30. Phylum Cnidaria Stinging cells (nematocysts)

32. Nematocyst

33. Phylum Cnidaria Stinging cells (nematocysts) Radial symmetry Incomplete digestive system

35. Phylum Cnidaria Stinging cells (nematocysts) Radial symmetry Incomplete digestive system Some alternate between polyp & medusa

37. PLANULA LARVAE

38. POLYP

39. Strobilization

40. EPHYRA

41. MEDUSA

43. Hydroids

45. Corals

46. Corals and Zooanthids

47. Sea Anemones

48. WORMS

49. Phylum Platyhelminthes Flatworms - Dorsoventrally flattened (top to bottom) Digestive tract has one opening Simple nervous system with two ganglia

51. Phylum Platyhelminthes Flatworms - Dorsoventrally flattened (top to bottom) Digestive tract has one opening Simple nervous system with two ganglia No true circulatory or respiratory systems

52. Phylum Platyhelminthes Three tissue layers – ectoderm, mesoderm, endoderm Most are simultaneous hermaphrodites, and can often self fertilize

54. Tapeworm in a Carp

55. Phylum Nematoda Long, tapered, cylindrical shape Longitudinal muscles

57. Phylum Nematoda Long, tapered, cylindrical shape Longitudinal muscles Complete Digestive system No circulatory or respiratory systems Pseudocoelom Roundworms

58. Phylum Nematoda Long, tapered, cylindrical shape Longitudinal muscles Complete Digestive system No circulatory or respiratory systems Pseudocoelom Reproduce sexually. Internal fertilization. Fertilized eggs are released into the water. Roundworms

59. PSEUDOCOELOM

61. Phylum Annelida Segmented worms Coelom

63. Phylum Annelida Segmented worms Coelom Circular muscles

65. Phylum Annelida Segmented worms Coelom Circular muscles Circulatory system (closed system)

67. Phylum Annelida (polychaetes) Segmented wormsSegmented worms CoelomCoelom Circular musclesCircular muscles Circulatory systemCirculatory system (closed system) Reproduction – separate genders release sperm & egg into water

68. Class Polychaeta Many BristlesMany Bristles

70. Gills

71. Sandcastle Worm

75. Other Worms Ribbon Worms (Nemerteans)

76. Other Worms Peanut Worms (Sipunculids)

77. Other Worms Gutless Worms (Pogonophora)