Answer:
the four chambered heart has a distinct advantage over simpler structures: it allows us to send are dirty blood to the cleaners the lungs and are clean blood to the rest of the body without having to mix the two .That system is very efficient.
Explanation:
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Answer:
the four chambered heart has a distinct advantage over simpler structures: it allows us to send are dirty blood to the cleaners the lungs and are clean blood to the rest of the body without having to mix the two .That system is very efficient.
Explanation:
Hope it helps you...