Zoology, 8th Edition (Miller)

Chapter 13: The Pseudocoelomate Body Plan: Aschelminthes

Quiz



1.

All of the following are aschelminths except the
A)Rotifers.
B)Kinorhynchs.
C)Acanthocephalans.
D)Nemerteans.
2.

The major unifying aschelminth feature is the
A)nervous system.
B)muscular system.
C)excretory system.
D)pseudocoelom.
3.

Which of the following is not a common aschelminth feature?
A)incomplete digestive tract
B)a muscular pharynx
C)constant cell numbers (eutely)
D)adhesive glands
4.

When aschelminths shed their cuticle, this is called
A)molting.
B)ecdysis.
C)eutely.
D)both a and b are correct.
5.

Which of the following phyla are not pseudocoelomate?
A)Acanthocephala
B)Rotifera
C)Polychaeta
D)Nematoda
6.

Recent morphological and molecular analyses suggest that aschelminths that molt their cuticle are most closely related to
A)platyhelminths.
B)arthropods.
C)annelids.
D)molluscs.
7.

Characteristics of the phylum Rotifera include all of the following except
A)a well-developed cuticle.
B)absence of protonephridia.
C)parthenogenesis is common.
D)triploblastic, bilateral, unsegmented, pseudocoelomate.
8.

There are __________ classes within the phylum Rotifera.
A)two
B)three
C)four
D)five
9.

Which of the following is not an external feature of a rotifer?
A)cilia
B)corona
C)germovitellarium
D)foot
10.

Where would you look for a kinorhynch?
A)a marine environment
B)a freshwater environment
C)on land that is relatively moist
D)on land that is relatively dry
11.

Which of the following is not a characteristic of the phylum Nematoda?
A)triploblastic, bilateral, vermiform
B)cuticles are not shed
C)complete digestive tract with a mouth surrounded by lips bearing sense organs
D)body wall has only longitudinal muscles
12.

Which of the following is not true with respect to nematode reproduction?
A)Most nematodes are dioecious.
B)Most nematodes are dimorphic.
C)Males are larger than the females.
D)Gonads lie free in the pseudocoelom.
13.

The scientific name of the common pinworm is
A)Ascaris lumbricoides.
B)Enterobius vermicularis.
C)Trichinella spiralis.
D)Wuchereria bancrofti.
14.

The scientific name of the common pork roundworm is
A)Ascaris lumbricoides.
B)Enterobius vermicularis.
C)Trichinella spiralis.
D)Wuchereria bancrofti.
15.

Members of the phylum Nematomorpha are commonly called the __________ worms.
A)horsehair
B)Gordian
C)round
D)both a and b are correct
16.

Of the following, which is the most recently described pseudocoelomate animal phylum?
A)Priapulida
B)Acanthocephala
C)Loricifera
D)Nematomorpha
17.

Which of the following is a distinct feature that occurs in all pseudocoelomate phyla?
A)pseudocoelom
B)adhesive glands
C)cuticle
D)none of the above
18.

Which phyla of aschelminths contains the greatest number of described species?
A)Rotifera
B)Nematoda
C)Kinorhynca
D)Loricifera
19.

An acre of of fertile garden soil can contain up to 5 billion animals from this phyla.
A)Rotifera
B)Nematoda
C)Kinorhynca
D)Loricifera
20.

The aschelminths are seven phyla grouped only for convenience.
A)True
B)False
21.

The aschelminths contain organs for gas exchange and circulation.
A)True
B)False
22.

The majority of rotifers inhabit freshwaters.
A)True
B)False
23.

Mictic eggs are diploid.
A)True
B)False
24.

Nematodes live in both aquatic and terrestrial environments.
A)True
B)False
25.

Acanthocephalans are also known as spiny-headed worms because of their spiny proboscis.
A)True
B)False
26.

A mosquito is necessary for development of Trichinella spiralis.
A)True
B)False
27.

Elephantiasis is caused by filarial worms (i.e., Wuchereria spp.).
A)True
B)False
28.

Ascaris lumbricoides is commonly known as the giant intestinal roundworm of humans.
A)True
B)False
29.

All juvenile nematomorpha are parasites of arthropods.
A)True
B)False
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.