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

5. 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

6. 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
ANTERIOR
POSTERIOR
DORSAL
VENTRAL