1.

Flowering plants have developed manydevices to encourage cross pollinationFind out any three such devices inangiosperms

Answer»

1.) Release of Pollen much before or much after the stigma is ready to accept it (receptiveness of stigma) .

2.) Placement of anther & stigma at such positions so that the pollens do not reach the stigma of the same plant or the same flower.

3.) It is a chemical method in which the stigma inhibits the growth of the pollen tubes into the pistil. This process is known as SELF-INCOMPATIBILITY

4.) Production of flowers or plants that are UNISEXUAL i.e. the plant or flower exhibit dioecy.

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