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) Organism in which external ear (pinna) is present (b) Organism in which nictitating membrane is present
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(a) Human being; (b) Frog.