Pumping It Up: High Blood Pressure on the African Savanna
28.1 The Human Cardiovascular System
28.2 Blood Vessels and Blood Flow
28.3 Breathing in Humans
28.4 Principles of Gas Exchange
28.5 How Animals Transport Gases to Respiring Cells
Why Giraffes Have Such High Blood Pressure
Biology in the News: WADA Reports Breakthrough in Gene Doping Tests
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