In angiosperms,an unusual reproductive process involving two sperm cells occurs,called:

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The unusual reproductive process in angiosperms is called double fertilization, which involves the fusion of one sperm cell with the egg cell to form a zygote, and the fusion of the other sperm cell with the two polar nuclei to form endosperm, which serves as a nutrient source for the developing embryo. Self-pollination, pollen tube formation, and germination are all important processes in angiosperm reproduction, but they are not the specific process that involves two sperm cells.

In Angiosperms,an Unusual Reproductive Process Involving Two Sperm Cells Occurs,called