Does it have two layers (diploblastic) or three (triploblastic)?
Start with Porifera (sponges) and move through Cnidarians, Platyhelminthes (flatworms), Mollusks, Annelids, and the massive group of Arthropods (insects/spiders). TEXT-BOOKS OF ANIMAL BIOLOGY A General Zoology ...
How they manage waste (ammonia vs. urea vs. uric acid). Does it have two layers (diploblastic) or three
Look for the terms Acoelomate , Pseudocoelomate , and Coelomate . This is a major divider in animal complexity. 3. The Survey: Kingdom Animalia TEXT-BOOKS OF ANIMAL BIOLOGY A General Zoology ...
Understanding natural selection and how traits are passed down. This provides the "why" behind animal diversity.
This is the "meat" of the textbook. Don't memorize every species; focus on the of each Phylum:
How they regulate body temperature (Ectotherms vs. Endotherms). 5. Ecology and Behavior Finally, look at how animals interact with their world: