Question
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Solving time: 2 mins
\textbf{Why do the pollen grains of Vallisneria have a mucilaginous covering? }
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Pollen grains have a mucilage covering to protect themselves from wetting as is a water pollinated species.
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(i) that develops into seed coat.
(ii) that develops into an embryo after fertilization.
(iii) that develops into an endosperm in an albuminous seed.
(iv) through which the pollen tube gains entry into the embryo sac.
(v) that attaches the ovule to the placenta.
(b) Describe the characteristic features of wind pollinated flowers.
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Question Text | |
Topic | Sexual Reproduction in Flowering Plants |
Subject | Biology |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 107 |