Biology: The Dynamics of Life, North Carolina Edition

Chapter 25: What is an animal?

What is an Animal?

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In Figure 25-2, where is the ectoderm?
A)B
B)C
C)A
D)D
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In Figure 25-2, where is the endoderm?
A)A
B)B
C)D
D)C
3
Which of these animals has bilateral symmetry?
A)jellyfish
B)flatworm
C)hydra
D)sponge
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In Figure 25-2, where is the gastrula?
A)B
B)D
C)C
D)A
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Which of the organisms in Figure 25-3 has the most complex systems developed from coelom?
A)D
B)A
C)C
D)B
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In Figure 25-2, if part A develops into a mouth, this organism will be a _____.
A)protosome
B)autosome
C)autotroph
D)deuterosome
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Which of the organisms in Figure 25-3 is asymmetrical?
A)A
B)B
C)D
D)C
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In Figure 25-2, where is the mesoderm?
A)C
B)B
C)D
D)A
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Which of the organisms in Figure 25-3 has bilateral symmetry but no endoskeleton?
A)B
B)D
C)A
D)C
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Which of the organisms in Figure 25-3 probably has the most muscular control?
A)B
B)C
C)D
D)A
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