AP BIOLOGY

Detailed explanation-1: -Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma.

Detailed explanation-2: -The transfer of pollen grains from the anther to stigma of a flower is called pollination.

Detailed explanation-3: -Pollination can be accomplished by cross-pollination or by self-pollination: Cross-pollination, also called allogamy, occurs when pollen is delivered from the stamen of one flower to the stigma of a flower on another plant of the same species.

Detailed explanation-4: -cross-pollination, also called heterogamy, type of pollination in which sperm-laden pollen grains are transferred from the cones or flowers of one plant to egg-bearing cones or flowers of another.