Introduction to Kingdom Animalia

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					Introduction to
Kingdom Animalia
Characteristics of Animals

Heterotrophic
Multicellular
Movement
Eukaryotic
Basic Embryology
Define:
Zygote
Embryo
Blastula
Gastrula
Embryonic Germ Layers
Ectoderm– outside layer
Mesoderm – middle layer
Endoderm – inside layer
LAYER      ORGAN & ORGAN
           SYSTEM
Ectoderm   Nervous system
           Skin
Mesoderm   Muscles
           Circulatory System
           Skeletal System
           Reproductive System
Endoderm   Lining of gut and
           respiratory tracts
           Liver
           Pancreas
Animals With No
Embryonic Stages

Sponges
Cnidarians
Ctenophorans
Protostomes – blastopore
becomes mouth
   Acoelomates – no body cavity
    – Platyhelminthes
 Draw the acoelomate body plan in
  your notes here.
 Pseudocoelomates – fake body cavity
    – Nematodes
   Draw the pseudocoelomate body
    plan in your notes here.
Deuterostomes – blastopore
becomes anus
   All are Eucoelomates – true body
    cavity
    – Mollusks
    – Annelids
    – Arthropods
    – Echinoderms
    – Chordates
   Draw the eucoelomate body plan in
    your notes here.
Symmetry
Assymmetry
 –Irregular shapes
 –Do not move
 –Sponges
Symmetry
Radial   Symmetry
 –Can divide into equal halves
  using many planes
 –Cnidaria (stinging animals)
 –Echinoderms (sea stars)
Symmetry
 Can only divide into left & right
  halves
 Most efficient for movement
  – Flatworms
  – Roundworms
  – Mollusks
  – Segmented Worms
  – Chordates
 Anatomical Positions
            DORSAL




POSTERIOR               ANTERIOR




            VENTRAL