When a seed is first formed in the fall, it typically will not germinate because __________ must first be washed from the seed by a hard rain or broken down by cycles of freezing and thawing.

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    ethylene
    auxin
    abscisic acid
    cytokinin
    gibberellin

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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abscisic acid
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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