NCERT Important Questions Class 9 Science biology Chapter 7
Important NCERT Extra Questions
Chapter 7 Diversity in Living Organisms
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Name the following: (a) Cavity present in the body of sponges. (b) Cavity present in the body of cnidarians.
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(a) Spongocoel; (b) Coelenteron.