Biology: The Dynamics of Life, California Edition

Section 3: Flatworms

Flatworms

1.
Why do parasitic flatworms have hooks in their mouths?
A)to filter feed more easily.
B)to reproduce through regeneration.
C)to anchor to the host.
D)to attach to a ganglion.
2.
Which animal is responsible for passing the disease schistosomiasis to humans?
A)planarians
B)nematodes
C)tapeworms
D)blood flukes
3.
Where are most of a planarian's nervous system organs located?
A)in the muscles
B)in the lungs
C)in the tail
D)in the head
4.
Which planarian body part takes food into its digestive system?
A)the flame cell
B)the head
C)the cilia
D)the pharynx
5.
Planarians are able to replace missing body parts through __________.
A)regeneration
B)nerve nets
C)trichinosis
D)nematocysts
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