Der students this video explains the blood circulation
https://www.youtube.com/watch?v=jBt5jZSWhMI
https://www.youtube.com/watch?v=huzs3Q4-CGc
The circulatory system structure and blood circulation
https://www.youtube.com/watch?v=-s5iCoCaofc
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Complete the following diagram:-
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How to keep your circulatory system healthy
https://www.youtube.com/watch?v=_PnD8KCNurs
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