How do you think the structure of a flower is well-suited to its function?

The structure of a flower helps the flower be able to pollinate. Most flowers have a pleasing outward appearance, and tend to give off a sweet smell of nectar for bees or other such bugs to come, take the nectar, and also unintentionally take the pollen with them. 

The process that fuels our sun and allows it to give off that much energy is called nuclear fusion.