The ovary of a flower has 20 ovules. How many seeds will a fruit that develops from that flower have?
20
Fruits develop from fertilised flowers. After pollination, the male gamete reaches the ovary and fuses with the egg to form the zygote. The ovule encasing the zygote develops into the seed. So, if the ovary of a flower has 20 ovules then the fruit that develops from that flower will have 20 seeds.