CHAPTER 16 THE ECHINODERMS - PAGE 241 Outline - Page 241 Concepts - Page 241 Evolutionary Perspective - Page 241 Echinoderm Characteristics - Page 242 Class Asteroidea - Page 243 Class Ophiuroidea - Page 246 Class Echinoidea - Page 247 Class Holothuroidea - Page 248 WILDLIFE ALERT + IMPERILED SEA CUCUMBERS (ISOTICHOPUS FUSCUS) - Page 250 Class Crinoidea - Page 251 Class Concentricycloidea - Page 252 Further Phylogenetic Considerations - Page 252 Summary - Page 253 Selected Key Terms - Page 254 Critical Thinking Questions - Page 254 Online Learning Center - Page 254 |