Question

Most of the flowers are brightly colored and have a sweet smell. Explain why?

Answer 1

That sweet smell is just because of nectar and the colors are natural, like from birth of the flower.

Answer 2

Most of the flowers have sweet smell and brightly-colored petals for cross pollination to occur. Cross pollination uses insects and mostly bees for pollination. And since insects and bees are attracted by coloured petals and sweet smell most of the flowers have such characteristics