Question

which part of the flower is useful even after fertilization

Answer 1

Ovary...............

Answer 2

here's your answer looking for

the ovary of flower is useful even after fertilization.

as the ovary after fertilization ripens into the fruit so it is required even after the fertilization because this is the part only that later become a fruit.

if we see at the, anther then it is not required after fertilization.

hope you are satisfied with my answer