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green1223(½ð±Ò+2):²»¹»µØµÀ ллÄ㣡 2010-03-27 01:07
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Originally posted by green1223 at 2010-03-26 23:54:51:
Once the ovules mature, double fertilization results in the formation of a
zygote and a polar chalazal complex within the endosperm cavity of
each fertilized ovule¡£
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