Answer:
An
animal is said to have bilateral symmetry if it has two equal but opposite right
and left halves when cut lengthwise in the middle vertical plane, e.g., frog.
On the other hand, an animal is said to have radial symmetry, if it is symmetrical
with respect to any plane passing through its longitudinal axis. In other
words, any plane passing longitudinally through any diameter divides the body
into equal halves, e.g.. Hydra.
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