This video summarises Part 1 of what you need to know about topic 9.Transport in Animals from the Cambridge IGCSE syllabus of Paper Biology 0610, for exams in 2023,2024 and 2025.

00:00 Welcome
00:10 Please Subscribe
00:28 The Circulatory System
00:51 Single Circulation of a Fish
02:34 Double Circulation of a Mammal
05:35 Advantage of Double Circulation
06:10 The Heart
11:33 Coronary Arteries
12:03 Muscular Walls
12:50 Monitoring Heart Activity
13:11 Effect of Physical Activity on Heart Rate
14:33 Coronary Heart Disease