Primary carbon

This is a picture of a human fetus at 6 weeks` gestational age (i.e. 4 weeks after fertilization). Photo credit: The present image (without watermark) was donated by Wouter Vergeer on Wednesday, August 29, 2007 on behalf of 3DPregnancy.com. ...
Found on http://en.wikipedia.org/wiki/Primary_carbon
No exact match found