Section 27.2:
Segmented Worms
1.
What is the function of an earthworm's gizzard?
a.
It sends messages from the earthworm's brain to its nerve fibers.
b.
It takes food into the earthworm's body.
c.
It enables the earthworm to move.
d.
It grinds the earthworm's food into small pieces.
Hint
2.
Which body part enables segmented worms to move?
a.
nephridia
b.
crop
c.
setae
d.
stomach foot
Hint
3.
Segmented worms have __________.
a.
asymmetry
b.
a closed circulatory system
c.
an open circulatory system
d.
radial symmetry
Hint
4.
Which of these animals are polychaetes?
a.
plumed worms
b.
nematodes
c.
leeches
d.
earthworms
Hint
5.
Leeches and earthworms are both __________.
a.
limpets
b.
asymmetrical
c.
bristleworms
d.
hermaphrodites
Hint
