Kingdom Animalia - PowerPoint PPT Presentation

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Kingdom Animalia

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Kingdom Animalia Characteristics of Animals Eukaryotic cells have a nucleus and membrane bound organelles Heterotrophic must ingest their food Diploid two ... – PowerPoint PPT presentation

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Title: Kingdom Animalia


1
Kingdom Animalia
2
Characteristics of Animals
  • Eukaryotic cells have a nucleus and membrane
    bound organelles
  • Heterotrophic must ingest their food
  • Diploid two copies of each chromosome
  • Multicellular made of many cells
  • Forms a Blastula a hollow ball of cells

3
Characteristics of Animals
  • Motile can move during at least one stage of
    life
  • Some that do not move during a stage of life are
    called sessile

See Visual Concepts Ch 28 Reproduction in
Jellyfish
4
Animal Body Plan
  • Animals are described according to their
    arrangement of body symmetry
  • Asymmetry - irregular shape
  • Radial symmetry - arranged around a central axis
  • Bilateral symmetry - there are distinctive right
    and left halves

5
Animal Body Plan
  • Body Planes
  • Dorsal - upper
  • Ventral - lower
  • Anterior - front
  • Posterior - rear

6
Internal Body Cavity
  • Acoelomates have no body cavity filled with
    tissue (ex flatworms)
  • Pseudocoelomates have a body cavity located
    between the mesoderm and endoderm (roundworms)
  • Coelomate have a true coelom, a body cavity
    located entirely within the mesoderm (segmented
    worms, and higher animals including humans)

Ectoderm Mesoderm Endoderm
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