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1The segmental arrangement of body parts in an animal is called
A)tagmatization.
B)metamerism.
C)cephalization.
D)serialism.


2The specialization of body regions in a segmented animal is called
A)tagmatization.
B)metamerism.
C)cephalization.
D)eutely.


3Annelids and Arthropods have been traditionally considered to be closely related. Recent reevaluation of these relationships places Annelids in the Lophotrochozoa. If this is true they would be more closely related to the
A)Chordata.
B)Echinodermata.
C)Nematoda.
D)Mollusca.


4The annelid class whose members are mostly marine is
A)Hirudinea.
B)Oligochaeta.
C)Polychaeta.
D)Clitellata.


5A distinctive feature of members of the subclass Hirudinea is
A)parapodia.
B)tentacles.
C)anterior and posterior suckers.
D)palps.


6Earthworms belong to the annelid subclass
A)Hirudinea.
B)Chaetognatha.
C)Polychaeta.
D)Oligochaeta.


7A distinctive feature of members of the class Polychaeta is
A)parapodia.
B)clitellum.
C)annuli.
D)absence of setae.


8The girdle-like structure that is used for mucus secretion during copulation and cocoon formation is the
A)clitellum.
B)prostomium.
C)parapodium.
D)epitoke.


9A clitellum is present in the members of the subclass(es)
A)Hirudinea.
B)Polychaeta.
C)Oligochaeta.
D)Hirudinea and Oligochaeta.


10Oligochaetes are
A)monoecious.
B)dioecious.
C)monoecious or dioecious.
D)asexual.


11Most polychaetes are
A)monoecious.
B)dioecious.
C)protandric.
D)asexual.


12An excretory structure consisting of an open, ciliated funnel and a tubule that opens through the body wall is called a
A)protonephridium.
B)nephrostome.
C)metanephridium.
D)nephridiopore.


13The main propulsive structure(s) in the circulatory system of an earthworm is (are)
A)hearts.
B)dorsal and ventral blood vessels.
C)seminal vesicles.
D)the typhlosole.


14The _______ is a site of amino acid metabolism in an earthworm and is analogous to the vertebrate liver.
A)typhlosole
B)seminal vesicle
C)nephridium
D)chloragogen tissue


15No freeliving larval forms occur in the annelid class or subclass(es)
A)Hirudinea.
B)Hirudinea and Oligochaeta.
C)Polychaeta.
D)Polychaeta and Oligochaeta.


16Flexible support and efficient locomotion are probably the primary adaptive features of metamerism.
A)True
B)False


17The peristomium is the first segment of a polychaete. It surrounds the mouth and bears sensory tentacles or cirri.
A)True
B)False


18During copulation of earthworms there is mutual sperm exchange. Sperm passes from the seminal receptacles of each worm to the seminal vesicles of the partner.
A)True
B)False


19The secondary divisions of a member of the class Hirudinea are called annuli; they are easier to see than the true segments.
A)True
B)False


20The looping form of locomotion of leeches utilizes a single hydrostatic cavity formed as a result of the loss of septa separating coelomic compartments.
A)True
B)False


21A taxonomic reevaluation of the phylum Annelida confirms the designation of three classes: Polychaeta, Oligochaeta, and Hirudinea.
A)True
B)False


22The oligochaetes were the first annelids to be derived from ancestral annelids. The hirudineans and freshwater polychaetes were derived from the oligochaetes, and marine polychaetes were derived from freshwater polychaetes.
A)True
B)False


23Oligochaetes evolved on land during a time when flowering plants were proliferating. This fact is evidenced, in part, by the reliance of modern oligochaetes on deciduous vegetation.
A)True
B)False


24Polychaetes may be predators, herbivores, scavengers, or filter feeders.
A)True
B)False


25The immature stages of polychaetes occur in cocoons deposited on the ocean floor.
A)True
B)False





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