Glencoe Biology

Section 2: Animal Body Plans

Self-Check Quizzes

1
The similarity or balance among body structures is called ____.
A)symmetry
B)cephalization
C)the evolutionary tree
D)ectoderm
2
This hummingbird has what kind of body design?

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A)mesodermic symmetry
B)asymmetry
C)radial symmetry
D)bilateral symmetry
3
How do scientists mark the branching points of animal evolution?
A)habitat changes
B)anatomical features
C)population growth
D)eating habits
4
Why is the flatworm considered an acoelomate?
A)has no endoderm
B)has multiple body cavities
C)has no ectoderm
D)lacks a body cavity
5
In protostomes, the ____ develops from the opening in the gastrula.
A)nervous system
B)anus
C)mouth
D)tail
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