Which is true about the heart of mammals?
Atwo-chambered
Bthree-chambered
Cfour-chambered with complete separation of oxygenated and deoxygenated bloodCORRECT
Dno chambers
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Why the answer is C, and why the others tempt you.
Mammalian heart: 4 chambers (2 atria, 2 ventricles) — fully separates oxygenated and deoxygenated blood.
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