Question

why are flowers generally so colourful and fragnant? if flowers
are not so colourful and sweet-smelling, will fruit formation
be seen in these plants?

Answer 1

Flowers are generally so colourful and fragrant because to attract the insects for pollination.If flowers were not so colourful and sweet smelling then, pollination would not have taken place.

Fruit formation occurs when pollination occurs itdoesn’t depends on colour and fragrance

But in order to attract pollinating agent they have so