what are three major functions of flowers?
['The Female Reproductive Organ: The Carpel.', 'The Male Reproductive Organ: The Stamen.', 'Petals, Corolla, Sepals, Calyx.', 'Formation of Sex Cells.', 'Development of the Embryo Sac.', 'Pollination.', 'Fertilisation.', 'Double Fertilisation.']