Introduction to Kingdom Animalia

1
Introduction to Kingdom Animalia
2
Characteristics of Animals

• Heterotrophic
• Multicellular
• Movement
• Eukaryotic

3
Basic Embryology

• Define
• Zygote
• Embryo
• Blastula
• Gastrula

4
Embryonic Germ Layers

• Ectoderm outside layer
• Mesoderm middle layer
• Endoderm inside layer

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Animals With No Embryonic Stages

• Sponges
• Cnidarians
• Ctenophorans

7
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.

8
Deuterostomes blastopore becomes anus

• All are Eucoelomates true body cavity
• Mollusks
• Annelids
• Arthropods
• Echinoderms
• Chordates
• Draw the eucoelomate body plan in your notes here.

9
Symmetry

• Assymmetry
• Irregular shapes
• Do not move
• Sponges

10
Symmetry

• Radial Symmetry
• Can divide into equal halves using many planes
• Cnidaria (stinging animals)
• Echinoderms (sea stars)

11
Symmetry

• Can only divide into left right halves
• Most efficient for movement
• Flatworms
• Roundworms
• Mollusks
• Segmented Worms
• Chordates

12
Anatomical Positions