NCERT Important Questions Class 9 Science biology Chapter 6
Important NCERT Extra Questions
Chapter 6 Tissues
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
What is blood platelet?
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Blood platelets are minute, anucleated, fragile fragments of giant bone marrow cells, the megakaryocytes. They help in clotting of blood at the site of injury.