life cycle

Transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, and animals.

Two nuclei in the center of the egg sac of a flowering plant that become the triploid (3n) endosperm when joined with a sperm during double fertilization.

Anthophyte fertilization in which one sperm fertilizes the egg and the other sperm joins with the central cell; results in the formation of a diploid (2n) zygote and a triploid (3n) endosperm.

Food storage tissue in an anthophyte seed that supports development of the growing embryo.

Period of inactivity in a mature seed prior to germination.

Beginning of the development of a plant embryo into a new plant.

Embryonic root of an anthophyte embryo; the first part of the young sporophyte to emerge during germination.