Examlex
What did 100 countries agree to ban from dumping,under the London Dumping Convention of 1972?
Cross-pollination
The transfer of pollen from the anther of a flower of one plant to the stigma of a flower of another plant, promoting genetic diversity.
Pollen Grain
In seed plants, structure that is derived from a microspore and develops into a male gametophyte.
Polar Nucleus
In plants, one of the two nuclei that migrate to the center of the embryo sac and fuse with a sperm nucleus during fertilization, contributing to the endosperm's development.
Sperm Nucleus
The male genetic material contained within the head of a sperm cell that fuses with an egg cell's nucleus during fertilization.
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