ECG in sinhala 😃| AL biology | ECG explained with animation | biology sinhala lessons A/L
Channel: NEWLYUNITS
Date: 2023-03-29

හෘදයේ සන්නායක පද්ධතිය සහ හෘත් චක්‍රය -- https://youtu.be/4v2von0iBwo

ECG explained with animation 😍
A/L biology sinhala lessons.....

#ecg #science #sinhala #biology 

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