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Biology · HSEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

Identify the plant and the mode of pollination shown in the given diagram labeled as (a):

Question diagram
  1. A
    Pollination by wind in Eichhornia
  2. B
    Pollination by water in Vallisneria
  3. C
    Pollination by insects in Nymphaea
  4. D
    Pollination by water in Zostera
View Answer & Solution

Correct answer · Option B

Pollination by water in Vallisneria

Explanation

Figure 1.11 (a) shows pollination by water (hydrophily) in Vallisneria, where female flowers reach the surface of water by long stalks.

Related questions

Given below are two statements regarding outbreeding devices: Statement I: In castor and maize, unisexual male and female flowers are borne on the same plant, preventing autogamy but not geitonogamy. Statement II: In papaya, male and female flowers are present on different plants (dioecy), preventing both autogamy and geitonogamy. In light of the above statements, choose the correct answer:→Which of the following adaptations exclusively prevents autogamy but CANNOT prevent geitonogamy?→Which of the following groups of animals are considered the dominant biotic pollinating agents among all flowering plants?→Which condition is observed in dioecious plants like papaya, and which forms of pollination are prevented by it?→
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