Question

I usually go for late evening walk with my mother who is biology teacher.While walking, I saw many plants having coloured flowers . I also saw few plants having white flowers and I also smelled aroma being emitted by them. I was curious and asked my mother the following questions: a) Why do plants have various coloured flowers? b) Why do certain flowers emit aroma?

Answer 1

Plants carry out reproduction by pollination
This pollination is carried out by insect birds wind etc
That means all external facror
Many insects have evolved various different types of vision to check for best flower to land on and take nutrition it is as same as human and apes have evolved coloured vision for fruits
Super fragrance is for attracting insects which doesn't depend on flower for food