Question

Why reproduction in flowering plants is called double reproduction?

Answer 1

because in plants there is double fertilization occurs...

Answer 2

Of the two sperm cells, one sperm fertilizes the egg cell, forming a diploid zygote; the other sperm fuses with the two polar nuclei, forming a triploid cell that develops into the endosperm. Together, these two fertilization events in angiosperms are known as double fertilization