Sts unit 6 classification and animal diversity for moodle
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Sts unit 6 classification and animal diversity for moodle Sts unit 6 classification and animal diversity for moodle Presentation Transcript

  • Kingdom Animalia
    • Eukaryotic
    • Multicellular
    • Heterotrophic
    • No cell wall
    Porifera Annelida Cnidaria Mollusca Flatworms Echinodermata Roundworm Arthopoda Sharks Bony Fish Amphibians Birds Reptile Mammal
  • Symmetry
  • Invertebrate Phyla: Porifera
    • Pore-bearing
    • Free swimming larva form sessile adults
    • Aquatic, mostly marine
    • Sexual and Asexual Reproduction
    • Filter feeders
    • Commonly known as sponges
  • Invertebrate Phyla: Cnidaria
    • Have tentacles with “stinging” cells called nematocysts
    • Radial symmetry
    • One body opening
    • Two body forms
      • Polyp is sessile
      • Medusa is free swimming
    Hydra Coral Jellyfish
  • Invertebrate Phyla: Platyhelminthes
    • Flatworms
    • Bilateral symmetry
    • Free living or parasitic
    • Sexual reproduction (hermaphroditic) and asexually by regeneration
    Planaria Tapeworm
  • Invertebrate Phyla: Nematoda
    • Roundworms – no segments
    • Two body openings
    • Free-living and parasitic
    • Sexual reproduction
    • Body cavity present but only partially lined with mesoderm
    Heartworm Ascaris
  • Invertebrate Phyla: Annelida
    • Segmented bodies
    • Closed circulatory system
    • Hermaphroditic, sexual reproduction
    • A “true” coelom allowed complex organ systems to develop
    Earthworms Leeches
  • Invertebrate Phyla: Mollusca
    • Soft bodied, many with a hard outer shell (may be absent)
    • Some filter feeders, some a predators
    Snails Oysters, scallops, clams Squid, octopus
  • Invertebrate Phyla: Echinodermata
    • “ Spiny skin”
    • Contains an endoskeleton
    • Water vascular system
    • Radial symmetry
    • Regeneration of body parts
    Starfish Sand Dollar Sea Cucumber
  • A closer look at starfish… Tube Foot Sucker Radial Canal Madreporite Plate Reproductive Glands Ring Canal Digestive Gland Stomach Anus Endoskeleton Eyespot
  • Invertebrate Phyla: Arthropod
    • Very large, diverse group of animals
    • Adapted to many different environments
    • Jointed appendages
    • Exoskeleton made of chitin
    Insects (73%) Non-insect arthropods (12%) Non-arthropod invertebrates (11%) Vertebrates (4%)
  • Classes of Arthropoda
    • Crustaceans
      • Two body segments
      • 5 pairs of legs
      • Lobster, shrimp, crab
    • Arachnida
      • Two body segments
      • 4 pairs of legs
      • Spiders, ticks, scorpions
  • Classes of Arthropoda
    • Chilopoda
      • Carnivores
      • One pair of legs per body segment
      • Centipedes
    • Diplipoda
      • Herbivores
      • Two pairs of legs per body segment
      • Millipedes
  • Classes of Arthropoda
    • Insecta
      • Three body segments
      • Many have wings
      • Some have complex social structures
  • Phylogenetic Tree