McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test

1. Review the animation and answer the following questions.

Animals which are more evolved are more likely to

A. be cut in several different planes and still yield mirror images.
B. have multiple appendages all stemming from the same point.
C. have a definite right and left half.
D. be radially symmetrical

2. A sea star displays A. bilateral symmetry.
B. radial symmetry.
C. trilateral symmetry.
D. asymmetry.

3. Since more highly evolved animals show bilateral symmetry, we can assume that A. radially symmetrical animals will eventually go extinct.
B. bilaterally symmetrical animals will eventually go extinct.
C. radial symmetry provides some evolutionary advantage over bilateral symmetry.
D. bilateral symmetry provides some evolutionary advantage over radial symmetry.

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