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II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity

II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity - Collembola. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity - Collembola - Protura. II. Animal Diversity b. Ecdysozoans

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II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity

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  1. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity - Collembola

  2. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity - Collembola - Protura

  3. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 1. Diversity - Collembola - Protura - Insecta

  4. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 2. Biology - spiracles

  5. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 2. Biology - spiracles - Fusion of segments into three regions: head, thorax, abdomen

  6. II. Animal Diversity b. Ecdysozoans 3. Arthropod Phyla e. Phylum Hexapoda 2. Biology - spiracles - Fusion of segments into three regions: head, thorax, abdomen - Flight in insects

  7. II. Animal Diversity C. Bilateria 1. Protostomes – blastopore forms mouth a. Lophotrochozoans b. Ecdysozoans 2. Deuterostomes – blastopore forms anus a. Echinodermata b. Hemichordata c. Chordata

  8. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 1. Diversity - sea stars

  9. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 1. Diversity - sea stars - sea cucumbers

  10. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 1. Diversity - sea stars - sea cucumbers - sea urchins

  11. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 2. Biology - “biradial symmetry”

  12. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 2. Biology - “biradial symmetry” - internal skeleton – calcified plates

  13. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 2. Biology - “biradial symmetry” - internal skeleton – calcified plates - water vascular system and tube feet (sieve plate, ring canal, radial canal)

  14. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus a. Echinodermata 2. Biology - “biradial symmetry” - internal skeleton – calcified plates - water vascular system and tube feet (sieve plate, ring canal, radial canal) - filter feeders (Sea Lily), herbivores (sea urchins), predators (sea stars).

  15. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus b. Hemichordata – Acorn Worms

  16. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus b. Hemichordata – Acorn Worms - pharyngeal gill slits - hollow dorsal nerve tube

  17. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters

  18. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters - Pharyngeal Gill Slits

  19. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters - Pharyngeal Gill Slits - Hollow Dorsal Nerve Tube

  20. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters - Pharyngeal Gill Slits - Hollow Dorsal Nerve Tube - Post-anal tail

  21. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters - Pharyngeal Gill Slits - Hollow Dorsal Nerve Tube - Post-anal tail - notochord – a rigid supporting rod

  22. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 1. Urochordata - Tunicates

  23. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 1. Urochordata – Tunicates - 4 traits as larva

  24. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 1. Urochordata – Tunicates - 4 traits as larva - mobile as larva

  25. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 1. Urochordata – Tunicates - 4 traits as larva - mobile as larva - become sedentary as adults (filter)

  26. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 2. Cephalochordata – Lancelets

  27. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: Four Key Characters 2. Cephalochordata – Lancelets - 4 traits - burrowers - filter feeders

  28. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata

  29. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits

  30. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits - vertebral column

  31. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits - vertebral column - trends:

  32. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits - vertebral column - trends: - increased locomotion

  33. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits - vertebral column - trends: - increased locomotion - increased cephalization

  34. II. Animal Diversity C. Bilateria 2. Deuterostomes – blastopore forms anus c. Chordata: 3. Vertebrata - four traits - vertebral column - trends: - increased locomotion - increased cephalization - adaptations to land

  35. II. Animal Diversity 3. Vertebrata a. Origin of Vertebrates - filter feeding ancestor (lancelet-like) - 550 mya - Pikaea

  36. II. Animal Diversity 3. Vertebrata a. Origin of Vertebrates

  37. II. Animal Diversity 3. Vertebrata b. Jawless Fishes – (Class: Agnatha) - Early: Ostracoderms – filter feeding

  38. II. Animal Diversity 3. Vertebrata b. Jawless Fishes – (Class: Agnatha) - Current: lampreys, hagfishes: parasitic

  39. II. Animal Diversity 3. Vertebrata c. Jawed Fishes

  40. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - gill arches

  41. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - gill arches - evolved to jaws

  42. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - gill arches - evolved to jaws - increase feeding

  43. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - gill arches - evolved to jaws - increase feeding - priority on locomotion

  44. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - gill arches - evolved to jaws - increase feeding - priority on locomotion - Cephalization

  45. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - Placoderms (extinct – survived to Permian) dominant predators paired appendages for swimming

  46. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - Placoderms (extinct – survived to Permian) - Cartilaginous fish (Class: Chondrichthyes) also efficient paired fins - sharks - skates, rays - ratfish

  47. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - Placoderms (extinct – survived to Permian) - Cartilaginous fish (Class: Chondrichthyes) - Bony Fish (Class: Osteichthyes)

  48. II. Animal Diversity 3. Vertebrata c. Jawed Fishes - Placoderms (extinct – survived to Permian) - Cartilaginous fish (Class: Chondrichthyes) - Bony Fish (Class: Osteichthyes) - light bone skeleton

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