Question

differentiate between unisexual and bisexual flowers.give examples for each

Answer 1

Unisexual flowers
The flowers which have only stamen or carpels .
ex:-papaya, watermelon.
Bisexual flowers
The flowers which have both stamen and carpels. ex:- mustard.

Answer 2

In some plants male and female flowers are present in the same flower.Such flowers are bisexual or hermaphrodite flowers
In some of them male and female are born in different flowers such are called unisexual flowers.