Biology: The Dynamics of Life, North Carolina Edition

Section 2: Segmented Worms

Segmented Worms

1
Leeches and earthworms are both __________.
A)asymmetrical
B)limpets
C)hermaphrodites
D)bristleworms
2
Segmented worms have __________.
A)asymmetry
B)an open circulatory system
C)radial symmetry
D)a closed circulatory system
3
Which of these animals are polychaetes?
A)earthworms
B)leeches
C)plumed worms
D)nematodes
4
What is the function of an earthworm's gizzard?
A)It sends messages from the earthworm's brain to its nerve fibers.
B)It enables the earthworm to move.
C)It grinds the earthworm's food into small pieces.
D)It takes food into the earthworm's body.
5
Which body part enables segmented worms to move?
A)stomach foot
B)crop
C)nephridia
D)setae
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