Biology: The Dynamics of Life, California Edition

Section 4: Roundworms

Roundworms

1.
Which of these phyla do roundworms belong to?
A)poriferates
B)platyhelminthes
C)cnidarians
D)nematodes
2.
How do Ascaris eggs enter the human body in order to infect it?
A)through the ears
B)through the mouth
C)through the anus
D)through the intestinal tract
3.
Which roundworm is the most common human parasite in the United States?
A)Trichinella
B)hookworms
C)pinworms
D)Ascaris
4.
In what way are roundworms different from flatworms?
A)Roundworms have no free-living species and flatworms do.
B)Roundworms do not have eyespots and flatworms do.
C)Roundworms have two body openings and flatworms do not.
D)Roundworms are parasitic and flatworms are predators.
5.
Eating infected pork products can cause __________.
A)nematodes
B)trichinosis
C)schistosomiasis
D)hermaphrodites
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