Describe the body structure of sponges, cnidarians, flatworms, and roundworms, and
explain how each group feeds.
Describe two roundworm traits that were not found in previous animal phyla.
Describe the structure and function of the three parts of a mollusk body. Distinguish
among gastropods, bivalves, and cephalopods, and provide examples
Describe the general structure of annelids. Distinguish among earthworms, polychaetes,
and leeches, and provide examples of each.
Describe the general structure of arthropods, and discuss the advantages and
disadvantages of an exoskeleton. Also distinguish among arachnids, crustaceans,
millipedes, centipedes, and insects, and provide examples of each.
Describe the general structure of echinoderms, and explain the significance of the water
Describe the four characteristics of the phylum Chordata.
Distinguish among the following aquatic groups: agnathans, Chondrichthyes, ray-finned
fishes, lungfishes, and lobe-finned fishes. Describe the significance of the swim bladder.
Describe the dual life of amphibians.
Describe the adaptations of reptiles to living on land.
Describe three adaptations for flight found in birds. Compare birds to reptiles, noting
their similarities and differences.
Distinguish among monotremes, marsupials, and eutherian mammals, and provide
examples of each. Describe the characteristics common to all mammals.
Part 2 of Chapter 17 covers the major animal phyla and their characteristics.
When you began to review
for the test pay close attention to what phyla is the first to exhibit certain characteristics (ex. bilateral
symmetry, a complete gut, etc.)
and which characteristics are significant to specific phyla.
IV. Major Invertebrate Phyla
consist of only one subphylum within the phylum Chordata, and
are less than 5% of all animal species.
Invertebrates represent more than 95% of the animal kingdom.
(Review figures 17.9–17.10)
are sessile (no movement)