If you didn’t already know, Bees aren’t the only insects that collect pollen. Other than bees, there are also insects like:
flies, beetles, moths, butterflies, wasps, ants, birds, and bats. They also collect pollen.
Plants need to be pollinated in order to reproduce. Without pollen the plants will not be able to produce seeds or fruits as well as the next generation of plants. That’s why plants NEED pollination.
Each and every plant species produces their own unique looking pollen. They say that with the help of a microscope they are able to tell which plant it is based on the pollen.