Sep 30, 2009 11:37 pm US/Pacific
How Do Seeds Know Which Way Is Up?
(CBS 5)
It's a miracle that happens many times in the average backyard: seeds take root and plants bloom. Judith Isles wanted to know: How do seeds planted under soil know which way is up?
Our video report has more.
(© MMIX, CBS Broadcasting Inc. All Rights Reserved.)
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