Circulatory System Biology AQA GCSE Revision Organisation Topic 2020 19

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=JpmxmDCHHX4

Image sources: • Blood content http://images.wisegeek.com/illustrati... • https://images.template.net/wp-conten... • • 00:00 Introduction • 00:42 The blood • 04:56 The heart • 11:31 Blood vessels • 16:08 Health • 18:23 Heart health issues

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