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
What do you meant by the term Craniata?
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Craniata are animals which have the cranium (brain box) around the brain. They also have the vertebral column, so are also called Vertebrata