Saturday, June 5, 2010
#69 Animal with a 3-chambered heart
Amphibians(frog) has a 3-chambered heart. Their heart could be more efficient if it had four chambers instead of three. Why is this? If the frog had four chambers, oxygenated blood from the lungs would never mix with deoxygented blood from body tissues.
Source: Page 805 modern biology
WWW.accessexcellence.org
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