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
Identify the following fishes: (a) Fish with 5 to 7 pairs of gills; (b) Fish with air bladder.
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(a) Cartilaginous fish; (b) Bony fish.