Biology (Raven), 9th Edition

Chapter 33: Noncoelomate Invertebrates

Pre-Test

1
Which of these is uncharacteristic of the phylum Porifera?
A)Sponges lack tissues.
B)Sponges lack organs.
C)Sponges lack a definite symmetry.
D)Sponges have a complex multicellularity.
E)All of these are characteristic of the phylum Porifera
2
All members of the phylum Cnideria
A)are herbivores.
B)lack symmetry.
C)lack tissues.
D)are diploblastic.
E)include sponges.
3
Ctenophora (comb jellies) is a small phylum of medusa-like animals that
A)propel themselves with bands of fused cilia.
B)do not posses nerve tissue.
C)capture prey by filter feeding.
D)lack symmetry.
E)only exist in the polyp stage during their life cycle.
4
Which of these is NOT a characteristic of the Bilateria?
A)Bilateral symmetry
B)Anterior nerve receptors
C)Include Platyhelminthes
D)Include Nematodes
E)Include tiny organisms that live on the mouthparts of claw lobsters
5
Pseudocoelomates
A)are characterized by a cavity between tissues derived from mesoderm and tissues derived from endoderm.
B)do not represent a clade.
C)include roundworms.
D)has members that reproduce sexually and exhibit sexual dimorphism.
E)All of the above are correct.
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe