Insect pollinated flowers have brightly coloured petals and have sticky pollen grains. Why?

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Solution

Insect pollination is the transfer of pollen grains from anther to stigma by insects. Insect pollinated flowers produce brightly coloured petals and sticky pollen grains because:-
Brightly coloured petals attract insects because they are easily visible to insects from a very far distance.
Sticky pollen grains get easily attached to the insect body.

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