Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -snails and slugs

The __________ of earthworm allows them to resist desiccation in terrestrial environments.

Figure 31-2 Use the figure to answer the corresponding question(s). -The nervous system of many species of flatworms:

The circulatory system of cephalopods is closed, whereas that of all other mollusks is open.Explain the difference between open and closed circulatory systems, and describe how each system is adequate for the groups possessing it.

Malpighian tubules are used for excretion. ____________________

Sea anemones, unlike scyphozoans, have a partitioned gastrovascular cavity.This serves as a means of:

Insects are vectors of many diseases that affect humans.List several diseases and their insect vectors.

Members of class Hirudinida are the leeches. ____________________

Figure 31-3 Use the figure to answer the corresponding question(s). -Refer to Figure 31-3.The structures labeled 1 are used for:

Figure 31-3 Use the figure to answer the corresponding question(s). -The individual cars of a freight train could be used to describe:

Sponges have two true tissue layers. ____________________

Sponges are believed to have arisen from the choanoflagellates because they possess:

Taking a laxative might have an impact on the survival and reproduction of which of the following organisms?

The larvae of some cnidarians are known as __________ larvaE.

A member of subphylum Hexapoda is a crab. ____________________

Members of the class __________ include blood-sucking parasites.

Sea anemones belong to class Cubozoa. ____________________

MATCHING Match the organism or its characteristic with the correct phylum. a.Annelida f.Nematoda b.Arthropoda g.Nemertea c.Cnidaria H.Platyhelminthes d.Ctenophora I.Porifera e.Mollusca J.Rotifera -ribbon worms

The phylum name Arthropoda refers to:

Annelids are segmented worms. ____________________