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Which of the following is a dioecious, submerged, fresh water plant?

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in Biology – Class 12 by (271k points)
Which of the following is a dioecious, submerged, fresh water plant?

(a) Vallisneria

(b) Cannabis

(c) Neelakurunji

(d) Zoster

The question was posed to me during an internship interview.

Question is taken from Flowering Plants Reproduction topic in chapter Sexual Reproduction in Flowering Plants of Biology – Class 12

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Correct choice is (a) Vallisneria

The best explanation: Vallisneria is a dioecious, submerged, fresh water aquatic plant. The male flowers cut off and come to the surface of water. Mature female flowers rise to the surface by elongation of their stalks.

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