Biology, Eighth Edition (Raven)

Chapter 34: Coelomate Invertebrates

Pre Test

1
What is a particularly characteristic feature of molluscs? (p .656 )
A)the shell
B)segmentation
C)the ctenidia
D)the radula
E)all of the above
2
What important evolutionary innovation is seen in the Annelida? (p. 660)
A)the heart
B)segmentation
C)parapodia
D)parasitism
E)a and b
3
Lophophorates share some features with protostomes and some with deuterostomes, yet they are classified as protostomes. This is: (p. 664)
A)by convention.
B)because of embryological evidence.
C)because of molecular evidence.
D)because of the type of coelom formation.
E)all of the above
4
What feature(s) of Arthropods has probably led to their great success? (p. 667)
A)their great range in size
B)possession of jointed appendages
C)possession of an exoskeleton
D)a and c
E)b and c
5
The echinoderms have a unique: (p. 676)
A)shell.
B)water-vascular system.
C)circulatory system.
D)nervous system.
E)reproductive system.
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