Glencoe Life Science

Chapter 13: Mollusks, Worms, Arthropods, Echinoderms

Standardized Test Practice

1
Which of the following organisms is a mollusk?
A)crab
B)earthworm
C)garden slug
D)leech
2
Which structure grinds the soil an earthworm ingests? [414_STP Questions_ta01]
A)setae
B)esophagus
C)gizzard
D)intestine
3
What is the function of the aortic arches? [414_STP Questions_ta01]
A)They grind soil and bits of organic matter.
B)They produce both sperm and eggs
C)They serve the same purpose as gills and lungs in other animals.
D)They pump blood throughout the body.
4
What is the name of the structures that the organism in the diagram uses to hold on to soil and to move? [414_STP Questions_ta01]
A)crops
B)gizzards
C)nerves
D)setae
5
Which of the following organisms has a closed circulatory system?
A)crayfish
B)snail
C)spider
D)earthworm
6
Which of these animals is a crustacean?
A)ant
B)pill bug
C)sea star
D)snail
7
Which of these animals undergoes incomplete metamorphosis?
A)bumble bee
B)butterfly
C)fly
D)grasshopper
8
Which of these is not a characteristic of arthropods?
A)exoskeleton
B)jointed appendages
C)segemented body
D)closed circulatory system
9
A water-vascular system is unique to
A)echinoderms.
B)arthropods.
C)crustaceans.
D)mollusks.
10
What are the hollow, thin-walled tubes that end in a suction cup on a sea star's underside?
A)book lungs
B)spicules
C)spiracles
D)tube feet
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

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