Question

Give the answer only 12th students
Pollination

Answer 1

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Pollen grains being non motile, angiosperms

have evolved the strategy to use abiotic agents

(wind, water) and biotic agents (birds, insects,

snails) to their flowers, feeding the visitors

and exploiting their mobility for pollination

and also seed dispersal. Pollen grains are

non-motile and they are usually carried from

flower to flower by means of external agents.

Pollination is the transfer of pollen grains from

anther to the stigma of the flower. It is the pre-

requisite for fertilization because both the male

and female gametes are non-motile. Moreover

gametes are produced at two different sites.

Answer 2

Explanation:

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