Zoology, 8th Edition (Miller)

Chapter 12: Annelida: The Metameric Body Form

Quiz



1.

The segmental arrangement of body parts in an animal is called
A)tagmatization.
B)metamerism.
C)cephalization.
D)serialism.
2.

The specialization of body regions in a segmented animal is called
A)tagmatization.
B)metamerism.
C)cephalization.
D)eutely.
3.

Annelids 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.
4.

Which group of animals do Annelids not share common ancestry with?
A)Mollusca
B)Bryozoa
C)Echinodermata
D)Nemertea
5.

The annelid class whose members are mostly marine is
A)Hirudinea.
B)Oligochaeta.
C)Polychaeta.
D)Clitellata.
6.

A distinctive feature of members of the subclass Hirudinea is
A)parapodia.
B)tentacles.
C)anterior and posterior suckers.
D)palps.
7.

Earthworms belong to the annelid subclass
A)Hirudinea.
B)Chaetognatha.
C)Polychaeta.
D)Oligochaeta.
8.

The Clitellata are believed to have evolved from a group of polychaetes that
A)lived at extreme depths in the ocean.
B)invaded freshwater habitats.
C)were able to live in both terrestrial and aquatic environments.
D)had a symbiotic relationship with fungi.
9.

A distinctive feature of members of the class Polychaeta is
A)parapodia.
B)clitellum.
C)annuli.
D)absence of setae.
10.

Recent morphological and molecular evidence has lead to this group of worms being included within the phylum Annelida.
A)echiurans
B)nemerteans
C)gastrotrichs
D)rotifers
11.

The girdle-like structure that is used for mucus secretion during copulation and cocoon formation is the
A)clitellum.
B)prostomium.
C)parapodium.
D)epitoke.
12.

A clitellum is present in the members of the subclass(es)
A)Hirudinea.
B)Polychaeta.
C)Oligochaeta.
D)Hirudinea and Oligochaeta.
13.

Oligochaetes are
A)monoecious.
B)dioecious.
C)monoecious or dioecious.
D)asexual.
14.

Most polychaetes are
A)monoecious.
B)dioecious.
C)protandric.
D)asexual.
15.

An 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.
16.

The 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.
17.

The _______ 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
18.

No free-living larval forms occur in the annelid class or subclass(es)
A)Hirudinea
B)Hirudinea and Oligochaeta
C)Polychaeta
D)Polychaeta and Oligochaeta
19.

Flexible support and efficient locomotion are probably the primary adaptive features of metamerism.
A)True
B)False
20.

Metamerism appears to have arisen just once in the evolution of animals.
A)True
B)False
21.

The peristomium is the first segment of a polychaete. It surrounds the mouth and bears sensory tentacles or cirri.
A)True
B)False
22.

During 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
23.

The 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
24.

The 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
25.

A taxonomic reevaluation of the phylum Annelida confirms the designation of three classes: Polychaeta, Oligochaeta, and Hirudinea.
A)True
B)False
26.

The 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
27.

Oligochaetes 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
28.

Polychaetes may be predators, herbivores, scavengers, or filter feeders.
A)True
B)False
29.

The immature stages of polychaetes occur in cocoons deposited on the ocean floor.
A)True
B)False
30.

Current evidence indicates that Polychaeta is a probably a paraphyletic grouping.
A)True
B)False
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