Скачать с ютуб GCSE Biology Revision "The Heart and Circulation" в хорошем качестве

GCSE Biology Revision "The Heart and Circulation"

GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Don... School licenses from 40p per copy https://www.freesciencelessons.co.uk/... In this video, we start by comparing the single circulatory system with the double circulatory system. We then look at the structure of the human heart and the pattern of blood flow through it. This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Biology. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks. Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Image credits: Heart model By BruceBlaus - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index... Artificial pacemaker By Steven Fruitsmaak [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (http://creativecommons.org/licenses/b...)], via Wikimedia Commons