fertilization is the action or process of fertilizing an egg or a female animal or plant, involving the fusion of male and female gametes to form a zygote.
Double fertilization is a complex fertilizationmechanism of flowering plants (angiosperms). This process involves the joining of a female gametophyte (megagametophyte, also called the embryo sac) with two male gametes (sperm)
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Fusion of male and female gametes are known as fertilisation.                                                double fertilization is a unique character of angiosperms,in this a female gametophyte join fertilise with 2 male gametes.
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