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Kingdom animalia

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  • 1. Kingdom Animalia
  • 2. Characteristics of Animals
    • Multi-cellular
    • Specialized (adapted for particular function)
    • Examples?
    • Heterotrophs
    • Mostly sexual repro, some asexual
    • Ability to move
    • Includes invertebrates, vertebrates
  • 3. Body Plan/Morphology
    • Symmetry: a pattern of structure
    • Asymmetry - no pattern
    • Radial symmetry - body parts branch out from a central point
    • Bilateral symmetry - pattern is a mirror image along each side of a line
    • Exhibit “cephalization”
  • 4. Asymmetry
  • 5. Radial Symmetry
  • 6. Bilateral Symmetry
  • 7.
    • Germ layers:
    • Fundamental tissue types found in animals
    • Gives rise to other tissues
    • Body cavities:
    • Allow for organization of the animal
    • Also helps with movement in some
  • 8. Invertebrates
    • Have radial or bilateral symmetry
    • Some are segmented
    • Body support is diverse …….
    • Carbon dioxide as a by-product of metabolism
    • Most animals have a circulatory system
    • Digestion done by absorption
    • Nervous system varies in complexity
    • Reproduction is sexual or asexual……or hermaphroditic in some species
  • 9. Vertebrates
    • Include fishes, amphibians, reptiles, birds, and mammals
    • All except fishes spend part of their life on land
    • Body support - endoskeleton
    • Skeleton designed to suit animal’s needs
    • Body coverings - designed to hold water inside the body
    • Closed circulatory systems
    • Digestion occurs in the gut
    • More-developed nervous system
    • Internal, external fertilization
  • 10. Phylum Chordata
    • Vertebrates fall into this phylum
    • Called chordates
    • Features include:
    • Notochord - develops into backbone
    • Dorsal hollow nerve cord - becomes brain, spinal cord
    • Pharyngeal pouches - outpockets of digestive tract
    • Postanal tail - behind anal opening
  • 11.