How else can flowers be pollinated without insect pollen?

A lily could be pollinated by either wind or insect, although they are more lilkily to be insect pollinated

Nectar

It sticks to them.

No. Have you seen the bee movie, it is all about pollen and how the bees save the flowers again, it's really childish but good. Flowers do not need pollen to sustain themselves, but they need it to...

Usually pollination occurs from bees. They will land on flowers and some of the pollen will stick to their legs. When they go to another flower, some of the pollen drops off of the bees legs. That is...