Q80 of 525 Page 254

What is bilateral symmetry?

When the body is divided into identical left and right halves in only one plane, it is called bilateral symmetry. E.g., Annelida


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What is pseudocoelom?

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Define enterocoelom.

 81

Name a fresh water sponge?

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Name the following:

(a) Cavity present in the body of sponges.


(b) Cavity present in the body of cnidarians