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
Write down two important characteristics o{ algal cell wall?
Share
(i) Unicellular non-jacketed sex organs.
(ii) Absence of embryo sac.