Life Science

Chapter 13: Mollusks, Worms, Arthropods, Echinoderms

Section 2 Self-Check Quiz-Eng.

1.
What does the word annelid mean?
A)little rings
B)head-footed
C)jointed foot
D)spiny skin
2.
Which one of the following special structures does an earthworm use to grind up soil it ingests?
A)setae
B)intestine
C)gizzard
D)crop
3.
Earthworms are hermaphrodites. This means that they produce ___________.
A)only sperm
B)only eggs
C)neither sperm nor eggs
D)sperm and eggs in the same body
4.
What annelid worm has a sucker at each end of its body?
A)an earthworm
B)a leech
C)a polychaete
D)a bristleworm
5.
One reason segmented worms are important to humans is because some of them __________.
A)drill holes in submerged wood
B)pollinate crops
C)condition and aerate the soil
D)destroy mollusks
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