Glencoe Biology

Chapter 25: Worms and Mollusks

Chapter Test Practice-English

1
How can various kinds of flatworms reproduce?
A)sexually and asexually
B)only by regeneration
C)only sexually
D)only asexually
2
A ____ is a muscular sac containing hard particles that grind soil and food.
A)septa
B)pharynx
C)gizzard
D)crop
3
A disease called ____ can be contracted by injesting a type of roundworm.
A)hermaphrodites
B)scolex
C)proglottids
D)trichinosis
4
Chemical sensitive cells are concentrated on small projections called ____.
A)trematodes
B)pharynx
C)proglottids
D)auricles
5
How can bivalves survive in the ocean despite their slow inactivity?
A)by utilizing a radula
B)by filter feeding
C)by utilizing siphons
D)by becoming parasitic
6
How do some nonnative earthworms negatively affect forest ecology?
A)They secrete enzymes that change the DNA of plants.
B)They result in dead matter that cannot be decomposed.
C)They remove leaf litter crucial for moisture and habitat.
D)They become parasitic to other earthworms.
7
How does a worm's segmented structure allow it to survive damage?
A)segments often break off and regenerate.
B)Multiple segments can take over crucial functions.
C)Segmented worms can survive without respiration.
D)Segmented worms can survive without digestion.
8
Respiratory structures consisting of filamentous projections are called ____.
A)bivalves
B)nephridia
C)gills
D)radula
9
The ____ is a membrane that secretes calcium carbonate to form a mollusk shell.
A)mantle
B)nephridium
C)radula
D)gill
10
The disease caused by parasitic filarial worms is called ____.
A)hermaphrodites
B)trichinosis
C)ascariais
D)elephantiasis
11
What are two functions of the pseudocoelom in roundworms?
A)assists in movment and light detection
B)provides a digestive tract and assists in movement
C)allows gas exchange and reproduction
D)allows chemical detection and gas exchange
12
What benefit do proglottids provide for tapeworms?
A)used for light detection
B)prevent tapeworms from harming their hosts
C)allow tapeworms to enter new hosts
D)used for chemical detection
13
What does this figure indicate?

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A)Flatworms are acoelomates that are asymmetrical.
B)Flatworms lack coeloms and have bilateral symmetry.
C)Flatworms likely evolved after arthropods.
D)Flatworms have an evolved body cavity.
14
What functions do nephridia have?
A)aiding movement and producing eggs
B)transporting oxygen and releasing carbon dioxide
C)detecting light and aiding movement
D)collecting waste and maintaining homeostasis
15
What is a key evolutionary adaptation of a roundworm's digestive system?
A)a pseudocoelom
B)a coelom
C)formation of proglottids
D)radula
16
What is a primary evolutionary feature of roundworms?

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A)are more closely related to rotifers than arthropods
B)have coeloms
C)do not have bilateral symmetry
D)have no ancestral protist
17
What is the name and function of the hairlike structures projecting from this earthworm?

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A)setae, provide an anchor for pushing through soil
B)crops, aid respiration
C)gizzards, secrete lubrication
D)setae, aids in respiration
18
What structure here is used for feeding?

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A)siphon
B)bivalve
C)mantle
D)radula
19
Which features do parasitic flatworms utilized in order to feed?
A)thick skin and complex digestive system
B)hooks and suckers
C)pharynx and radula
D)celia and tongue
20
Which of the following are features of the nervous systems of some mollusks?
A)eyes and brain
B)auricles and eyespots
C)incurrent and excurrent siphons
D)coelom and heart
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