unit 9a study guide ap

Invertebrate Study Guide 

  • Understand the general organization and biology of a sponge, including reproduction and metabolism
  • Understand how the body plan of a cnidarian differs from most other animals
  • Describe the digestive system of a cnidarian and indicate how it is an evolutionary advancement from that of a sponge
  • Differentiate among acoelomate, pseudocoelomate, and coelomate animals and give examples of each
  • Understand the general organization of the phylum Platyhelminthes and how their various organ systems compare to those of other “lower” invertebrates
  • Explain the structural and physiological changes that occur in parasitic organisms using the flatworm as examples
  • Understand the general organization of the phylum Nematoda and compare their systems to those of acoelomate animals
  • Differentiate between protostomes and deuterostomes and give examples of each
  • Understand the basic organization of the mollusk and the importance of the mantle
  • Describe the differences in body plan, reproduction, feeding, and respiration among the gastropods, bivalves, and cephalopods
  • Explain the advantages of segmentation in Coelomic organisms and include the phyla that exhibit segmentation
  • Understand the basic organization of annelids and how their organ systems compare to those of mollusks
  • Indicate how annelids are more advanced than mollusks
  • Understand how earthworms, leeches, and polychaetes differ form one another
  • Know the main characteristics of all arthropods
  •  Differentiate between chelicerates and mandibulates in terms of appendages and mouthparts
  • Describe ecdysis and know how it is controlled
  • Understand the basic internal organization of the arthropods including their circulatory, digestive, respiratory, excretory, and nervous systems
  • Differentiate between millipedes and centipedes
  • Describe the external and internal characteristics of the class Insecta
  • Understand the complexities of insect metamorphosis and differentiate between complete and incomplete metamorphosis
  • Describe the body plan of adult echinoderms
  • Differentiate among the five classes of echinoderms in terms of body plan, locomotion, tube feet modifications, and feeding strategy
  • Explain reproduction in echinoderms