Biology: The Dynamics of Life, North Carolina Edition

Chapter 27: Mollusks and Segmented Worms

Mollusks and Segmented Worms

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<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078675642/181859/Ch27_0_a.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (6.0K)</a>
Which shell shown in Figure 27-2 came from a stomach-footed mollusk?
A)A
B)none of them
C)C
D)B
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According to Figure 27-5, which phylum evolved first?
A)planaria
B)bivalves
C)annelids
D)nematodes
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According to Figure 27-5, which phylum are annelids closest to on an evolutionary scale?
A)bivalves
B)cestodes
C)gastropods
D)nematodes
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Which part of the squid shown in Figure 27-3 is the foot?
A)B
B)D
C)A
D)C
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Which shell shown in Figure 27-2 came from a mollusk that uses jellyfish nematocysts for protection?
A)C
B)B
C)A
D)none of them
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In the earthworm shown in Figure 27-4, what part is analagous to the central nervous system in humans?
A)A
B)D
C)B
D)C
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Which part of the squid shown in Figure 27-3 is analogous to a snail’s shell?
A)C
B)B
C)D
D)A
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In the earthworm shown in Figure 27-4, what part is analagous to the throat in humans?
A)D
B)A
C)B
D)C
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In the earthworm shown in Figure 27-4, what part is analogous to the stomach in humans?
A)A
B)B
C)D
D)C
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Which shell shown in Figure 27-2 is from the most recently evolved organism?
A)none of them
B)B
C)C
D)A
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