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Invertebrate Animals

Invertebrate Animals. Honors Biology. Objectives. Describe characteristics common to invertebrate animals Describe the characteristics of major animal invertebrate phyla Identify on sight members of major animal invertebrate phyla Define animal, chordate, vertebrate, invertebrate.

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Invertebrate Animals

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  1. Invertebrate Animals Honors Biology

  2. Objectives • Describe characteristics common to invertebrate animals • Describe the characteristics of major animal invertebrate phyla • Identify on sight members of major animal invertebrate phyla • Define animal, chordate, vertebrate, invertebrate

  3. Characteristics of animals • Multicellular • Eukaryotic • Heterotrophic • Sexual reproduction • No cell wall • Motile at some stage • Rapid response to environment • Nerve cells • Muscle cells • Both

  4. Taxonomy Viruses Domains: Kingdoms: Sub-groups: Bacteria X Archaea X Eukarya Protists Fungi Plants Non-vascular Vascular Seedless Gymnosperms Angiosperms Animals Invertebrates Vertebrates

  5. Classification • 27 Phyla – discuss major ones • Grouped as: • Invertebrates: NO backbone/vertebral column • Vertebrates: backbone/vertebral column • What is a backbone and what is a chordate? • Backbone: supportative bone structure • Chordate: has nerve chord • We will cover: • 6 phyla • 5 invertebrate phyla • 8 classes within the chordate phyla

  6. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  7. Classification: Invertebrate(no backbone) Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  8. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  9. Sponges Sponges (Porifera) • Sac-like body • Cellular level of organization • 2 cell layers • Filter feeder • Rudimentary nervous system • CAN regenerate (b)

  10. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  11. Cnidaria • Marine • Radial symmetry • Two cell layers with differentiation; one body opening • Alternating body forms (polyp & medusa) • Stinging cells

  12. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  13. Flatworms (Platyhelminthes) • 3 cell layers • Acoelomate • Many parasitic and/or pathogenic • One way digestive system

  14. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  15. Roundworms (Nematoda) • Moist environments • Most free-living; many parasitic • Pseudocoelomate • Tube-like digestive system • Well-developed senses in free-living

  16. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  17. Annelids • Segmented • Hydrostatic skeleton • Brain + solid nerve cord • Three main types • Marine Worms • 1 Clam worms (predators) • 2 Fan worms (prey) • Earthworms • Leeches

  18. Annelids

  19. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  20. Molluscs • Soft bodied with protective shells • Aquatic/Marine • Often mucus feeders • Body parts • Visceral mass • Foot • Mantle (secretes shell)

  21. Mollusks

  22. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  23. Arthropods • 3 types: • 1 Crustaceans • 2 Insects • 3 Arachnids • Major characteristics: • 1 Exoskeleton (chitin) • Protection • Attachment for muscles • Movement • Prevent drying out • 2 Segmented bodies w/ jointed appendages • 3 Well developed brains and nervous systems

  24. Arthropods: Crustaceans

  25. Arthropods: Insects

  26. Arthropods: Arachnids

  27. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Cnidarians Flatworms Roundworms Segmented worms Molluscs Arthropods Echinoderms Chordates

  28. Echinoderms • Marine animals • Internal skeleton • Spiny skin • Radially symmetrical

  29. Echinoderms

  30. Classification Domain Kingdom Phylum Eukarya Animalia Sponges Segmented worms Molluscs Arthropods Echinoderms Chordates

  31. Phylum Chordata

  32. Objectives • Name and describe characteristics of 9 chordate classes • Give an example of each chordate class • Describe three groups of mammals • Describe the Primate order • Describe the Hominidae family • Give the taxonomy of humans

  33. Chordates • 1 notochord • 2 hollow nerve cord in the back • 3 pharyngeal pouches (embryonic structures) • 4 tail

  34. Classification Domain Kingdom Phylum Class Eukarya Animalia Sponges Segmented worms Molluscs Arthropods Echinoderms Chordates Lancets Tunicates Jawless Fish Cartilaginous Fish Bony Fish Amphibians Reptiles Birds Mammals

  35. Lancets (invertebrate)

  36. Tunicates (invertebrate)

  37. Classification Domain Kingdom Phylum Class Eukarya Animalia Sponges Segmented worms Molluscs Arthropods Echinoderms ChordatesLancets Tunicates Jawless Fish Cartilaginous Fish Vertebrates Bony Fish Amphibians Reptiles Birds Mammals

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