How does "radial symmetry" differ from "bilateral symmetry"?

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    A radially symmetrical animal has dorsal and ventral surfaces. Bilaterally symmetrical animals do not.
    Most radially symmetrical animals are active, free-moving organisms throughout their lives, while bilaterally symmetrical animals are not.
    Radially symmetrical animals possess three embryonic germ layers, while bilaterally symmetrical animals only possess two.
    Radially symmetrical animals can be divided into symmetrical halves with any plane through the central axis. Bilaterally symmetrical animals can be divided into equal halves by only one specific plane through a central axis.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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Radially symmetrical animals can be divided into symmetrical halves with any plane through the central axis. Bilaterally symmetrical animals can be divided into equal halves by only one specific plane through a central axis.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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