Carpels are fused in . . .

In which of the following are the flowers unisexual?

The four whorls of a flower are arranged on the

Identify the type of flowers based on the position of calyx,corolla and androecium with respect to the ovary from the given figures $(a)$ and $(b)$.

Which of the following is a characteristic of an inferior ovary ($epigynous$ flower)?

What does the term 'Polypetalous' mean?