Before deciduous trees go through abscission (dropping their leaves), they always do this as well. What is it?

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    move all the nutrients stored in leaves back down to the stem and roots
    heat the leaves to cause a color change from green to red, yellow, and orange
    move all the nutrients stored in the roots up into the leaves
    move toxin produced in the plant into the leaves that are about to fall off
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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move all the nutrients stored in leaves back down to the stem and roots
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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