Double fertilization occurs within the embryo sac in the carpels of angiosperms.

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Double fertilization is a unique process that occurs only in angiosperms. It involves the fusion of one sperm cell with the egg cell to form a zygote, which gives rise to the embryo, and the fusion of the other sperm cell with two polar nuclei to form the triploid endosperm, which provides nutrients to the developing embryo. This process takes place inside the embryo sac, which is located within the carpel of the flower.

Double Fertilization Occurs Within the Embryo Sac in the Carpels