They wither as their function is complete (attracting pollinators), they wither and detach from the plant so that they don't consume any more of the plants resources
fruit
The petals wither away
they will wither and fall off
After flowers wither, the flower will become a fruit because of pollination.
When the ovule is fertilized, and begins to develop into the seed, the petals wither and drop off. They have done their job of attracting a pollinator and are no longer needed.
fruit
The sole purpose of the flower is to attract a pollinator. Once the flower has done it's job it is superfluous so is discarded to save energy.
They wither and fall off
The petals wither away
The petals wither away
If the corn flower is pollinated, it will eventually drop the petals and form seeds. if it is not pollinated, it will wither and die.
they will wither and fall off
I believe you are referring to the flower petals, but they are not there to protect the ovary or anything and they often drop off quickly or wither. Flower petals and their bright colors (some of these colors cannot be seen by mammals) are there to attract pollinators (e.g. insects and birds) and guide them towards the center of the flower so that they may efficiently pollinate the ovary.
They die.
After flowers wither, the flower will become a fruit because of pollination.
When a fertilised egg becomes a seed the flower spreads its seeds so there isn't a fight for space , water or sunlight. When a fertilised egg becomes a seed the flower spreads its seeds so there isn't a fight for space , water or sunlight.
When the ovule is fertilized, and begins to develop into the seed, the petals wither and drop off. They have done their job of attracting a pollinator and are no longer needed.