alleryThe mammalian heart has how many chambers?
A2 chambers (one atrium and one ventricle)
B3 chambers (like reptiles such as crocodiles)
C4 chambers (2 atria and 2 ventricles)
D5 chambers (4 + the bulbus arteriosus)
Answer & Solution
Correct answer: C. 4 chambers (2 atria and 2 ventricles)
Mammalian heart = 4 chambers (2 atria + 2 ventricles), completely separating oxygenated and deoxygenated blood.
Fish have 2 chambers
amphibians + most reptiles 3
birds and mammals 4.
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