Subject: Why are some organs duplicated?
Date: Wed Feb 25 03:55:53 2004
Posted by Tara-Lynne
Grade level: grad (science)
School: Wits
City: No city entered. State/Province: No state entered.
Country: No country entered.
Area of science: Development
ID: 1077702953.Dv
Message:
Why don't we have two hearts? Why do we have one heart and two lungs or two
kidneys?
Re: Why are some organs duplicated?
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