Biology (Mader), 10th Edition

Chapter 28: Invertebrate Evolution

Pre-Test

1
Which of the following does not describe animals?
A)Multicellular
B)Heterotrophic
C)Germ layers
D)Cell walls containing cellulose
2
An animal that has definite right and left halves has _____.
A)asymmetry
B)radial symmetry
C)bilateral symmetry
D)None of these
3
An animal that has an internal body cavity completely lined with mesoderm is called a(n) _____.
A)acoelomate
B)pseudocoelomate
C)true coelomate
4
All animals are believed to have evolved from a _____ ancestor.
A)fungal
B)bacterial
C)protistan
5
Which of the following is a germ layer that may be present during animal development?
A)Ectoderm
B)Endoderm
C)Mesoderm
D)All of the above
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