Biology: The Dynamics of Life, North Carolina 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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