Question: how fast can bees pollenate

Roberto answered on 11 Nov 2018:

Once she sits on a new flower, carrying on her body pollen from other similar flowers, the game is done and the flower is pollinated.
So, it is really a matter of a few seconds. Then it depends if the flower had enough pollen to be fully pollinated or need more honeybee visits with more pollen to complete its pollination process.