Class 12 · Sexual Reproduction in Flowering Plants

Agents of Pollination & Pollen Production — NEET Biology

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Agents of Pollination: Plants use two abiotic (wind and water) and one biotic (animals) agents to achieve pollination. Majority of plants use biotic agents for pollination. Only a small proportion of plants use abiotic agents. Pollen grains coming in contact with the stigma is a chance factor in both wind and water pollination. To compensate for this uncertainties and associated loss of pollen grains, the flowers produce enormous amount of pollen when compared to the number of ovules available for pollination.

NCERT Biology · Class 12 · Chapter 1 · Paragraph 39
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Assertion (A): Wind and water pollinated plants achieve successful reproduction despite uncertainties. Reason (R): These plants produce enormous amounts of pollen to compensate for losses during dispersal.

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