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Multiple Choice Quiz
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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

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.
7

There are __________ classes within the phylum Rotifera.
A)two
B)three
C)four
D)five
8

Which of the following is not an external feature of a rotifer?
A)cilia
B)corona
C)germovitellarium
D)foot
9

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
10

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
11

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.
12

The scientific name of the common pinworm is
A)Ascaris lumbricoides.
B)Enterobius vermicularis.
C)Trichinella spiralis.
D)Wuchereria bancrofti.
13

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

Members of the phylum Nematomorpha are commonly called the __________ worms.
A)horsehair
B)Gordian
C)round
D)both a and b are correct
15

Of the following, which is the most recently described pseudocoelomate animal phylum?
A)Pariapulida
B)Acanthocephala
C)Loricifera
D)Nematomorpha
16

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
17

The aschelminths are seven phyla grouped only for convenience.
A)True
B)False
18

The aschelminths contain organs for gas exchange and circulation.
A)True
B)False
19

The majority of rotifers inhabit freshwaters.
A)True
B)False
20

Nematodes live in both aquatic and terrestrial environments.
A)True
B)False
21

Acanthocephalans are also known as spiny-headed worms because of their spiny proboscis.
A)True
B)False
22

A mosquito is necessary for development of Trichinella spiralis.
A)True
B)False
23

Elephantiasis is caused by filarial worms (i.e., Wuchereria spp.).
A)True
B)False
24

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





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