PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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While learning to ride a bicycle Boojho lost his balance and fell. He got bruises on his knees and it started bleeding. However, the bleeding stopped after some time.

a. Why did the bleeding stop?
b. What would be the colour of the wounded area and why?

c. Which type of blood cells are responsible for clotting of blood?
Answer variants:
Blood coagulation or clotting causes bleeding to cease.
Blood clotting is the function of platelets.
Because of the blood clotting, the injured region would first appear dark red in color.