The Invertebrates

Objectives for the chapter and helpful videos/songs/charts are listed below. This is not an all inclusive list of the content, but it is an excellent place to start or review! The videos are used as a study tool and may cover more or less than what we will cover in class. I will not test you on anything we did not cover in class, unless stated otherwise.


Introduction to the Animal Kingdom

Characteristics of the Kingdom Animalia 15.1 (Pg. 341-342)

  1. Demonstrate an understanding of the nine major characteristics of kingdom Animalia by giving examples of each

Basic Anatomy of Animals 15.2 (Pg. 342-344)

  1. Distinguish between the three types of symmetry seen in animals
  2. Apply relative terms to familiar examples of animal symmetry and anatomy
  3. Recognize the relative abundance of species among the major phyla and classes of animals

Poriferans and Cnidarians

Phylum Porifera: The Sponges 15.3 (Pg.345-347)

  1. Trace the path of water and food through a typical sponge
  2. Describe how a sponge’s body is supported
  3. Contrast asexual and sexual reproduction in sponges

Phylum Cnidaria 15.4 (Pg. 347-351)

  1. Describe the two different cnidaria body forms
  2. Summarize how the cnidocytes function in capturing prey
  3. Compare reproduction in the hydra and Aurelia 

The Worms

Phylum Platyhelminthes: The Flatworms 15.5 (Pg. 351-357)

  1. List and describe the purposes of the three planarian body layers
  2. Summarize the feeding and digestion processes of planarians
  3. Contrast asexual and sexual reproduction in planarians
  4. List several major structural differences between parasitic and free-living flatworms
  5. Compare the life cycles of the sheep liver fluke and the pork tapeworm

Phylum Nematoda: The Roundworms 15.6 (Pg. 357-359)

  1. List some of the diverse habitats that harbor roundworms
  2. Explain why the Ascaris has been described as a “tube within a tube”
  3. Compare the Ascaris reproduction with that of other worms already studied

Phylum Annelida: The Segmented Worm 15.7 (Pg. 359-362)

  1. Describe the major life processes of the earthworm
  2. Compare and contrast the leech and earthworm in regard to structures and habits

Other Invertebrates

Phylum Mollusca 15.8 (Pg. 363-366)

  1. Discriminate among the three mollusk classes
  2. Describe filter feeding in bivalves using all appropriate terms
  3. Compare and contrast movement in the three classes of mollusks

Phylum Echinodermata 15.9 (Pg. 366-368)

  1. Describe the operation of the water-vascular system
  2. Compare sexual and asexual reproduction in starfish
  3. Name and briefly describe one example for each of the five echinoderm classes

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