Which organ of the flower does the function of producing friut and seed?

Manya bagged four different kinds of flowers on the potted plants as represented by the given figures and left them as such. Which of these four flowers is most likely to produce fruits and seeds?

A particular part of flower performs the function of producing eggs. On fertilization, these eggs develop into seeds. Which part of flower performs the described function?

Which part of the flower represent female reproductive organ

Which part of flower produces pollens?

Which of the following are flowerless plants that produce cones and seeds in which seeds are not encased within an ovary?

Which organ produces heparin?