1. Intro to Animal Diversity
Chapter 32

2. What Is An Animal?

3. What Is An Animal?

4. What Is An Animal? Multicellular Heterotrophic Eukaryotic
No cell walls – held together with structural proteins, mainly collagen

5. Body Plans
Animal phyla are categorized based on features that are either present or absent.
Features often included:
Symmetry
Tissue layers
Body cavities
Protostomes vs. deuterostomes

6. Body Symmetry Asymmetrical Radial Bilateral Dorsal & ventral
Anterior & posterior

7. Body Tissues

8. Body Tissues No true tissues (no gastrulation) Diploblastic
Ectoderm & endoderm
Triploblastic
Also has mesoderm

9. Body Cavities
Acoelomate
Pseudocoelomate
Coelomate

10. Protostomes vs. Deuterostomes

11. Protostomes vs. Deuterostomes