Exam 27: Animals

Which phylum has members that exhibit radial symmetry, with their body parts arranged regularly around a central axis?

Which phylum has a unique water vascular system that usually includes tube feet that can be used for movement?

Which lineage do legless caecilians belong to?

What is a Malpighian tubule?

Contrast the typical embryonic development of protostomes and deuterostomes.

Which term refers to a small muscular bulb in the sea star's foot that contracts and forces fluid into the tube foot?

Which class includes living members that are the ray-finned fishes, with fins supported by thin and flexible bony rays?

Which lineage of cnidarians includes adults that are predominately medusae and the true jellyfishes?

Which lineage of echinoderms is made up of sea stars, each with a central disk surrounded by 5 to 20 "arms"?

Suppose that your friend ate pork and became sick afterward. Which parasite is it most likely that your friend ingested along with the pork meat?

Members of the order Hemiptera (true bugs) go through postembryonic development called incomplete metamorphosis. What are the stages of this process?

Which of the following secrete spicules?

Figure 27-1 -In Figure 27-1, what is the item labelled number 5?

Which class is composed mostly of freshwater parasites called leeches?

Which of the following types of cell cleavage is found most often for deuterostomes?

Lizards and snakes are living representatives of which lineage?

Which mammalian lineage includes organisms that lay eggs?

Match each group of organisms with its lineage. Each lineage will be used only once. -acorn worms

Which subphylum includes the sea squirts?

For most metazoans, what is the name of the innermost tissue layer during development?