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The Circulatory System: Heart, Blood, Pulse, and Animal Comp...
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The Circulatory System: Heart, Blood, Pulse, and Animal Comp...
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Chapters
Summary
Transcript
Chapters
1
The circulatory system
0:00
2
The heart’s two loops
0:29
3
Vessels and blood
0:57
4
Heartbeat, pulse, and exercise
1:27
5
Comparing vertebrates
1:58
