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1. Overview of Phylum Chordata Essential Question: What characteristics to all chordates have in common? Essential Question: What classes of animals make up phylum Chordata?
6. Class: Condrichythes “Sharks, Rays & Skates” Skeleton of cartilage Paired fins Most are carnivores; some filter feeders Placoid scales Teeth that point inward Gills All marine Ectotherm
7. Class: Osteichthyes “Bony Fish” Paired fins & scales Swim bladder Chromatophores Lateral Line Gills Marine & fresh water Ectotherm