|How are most animals classified?
|What are the main characteristics of chordates?
|How are vertebrates classified?
|What are heterotrophs & give some examples.
|In what ways do animals differ from plants?
|What are tissues?
|What determines an animal’s body plan?
|In what habitat do you find most species of animals?
|What is bilateral symmetry?
|What does bipedal mean?
|Where are the dorsal & ventral surfaces on a bipedal organism?
|What is radial symmetry?
|Name invertebrates that are asymmetrical, radial symmetry, & bilateral symmetry.
|What does cephalization mean?
|What invertebrate group was first to show cephalization?
|Describe the “surfaces” of animals with radial symmetry.
|Why is cephalization an advantage for animals?
|What is a postanal tail & give examples of adult chordates with this characteristic?
|Describe the “skeletal” support found in roundworms.
|What is segmentation, & what animals exhibit this characteristic?
|What is the function of kidneys, and what organisms have these organs?
|How do closed & open circulatory systems differ?
|How are terrestrial animals protected against water loss?
|What structures show segmentation in vertebrates?
|What is the advantage of having a long intestinal tract?
|How are nutrients moved through a cnidarian’s body?
|Describe how spiral cleavage occurs.
|Describe the embryo at the start of gastrulation.
|What forms from endoderm in cnidarians.