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Q.
Which of the following mechanisms is associated with the release of pollen grains in Pilea and Urticu?
EAMCETEAMCET 2004
Solution:
Pilea and Urtica belong to dicot family Urticaceae. In them pollen grains are released by gun power mechanism. This family contains bracteate or ebracteate, ebracteolate, nisexual, actinomorphic flowers.