Long-day plants flower specifically when the __________.

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    dark period is greater than some critical length
    light period is greater than some critical length
    light period is less than some critical length
    dark period is less than some critical length

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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dark period is less than some critical length
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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