Define cross pollination.

1. Cross-pollination:

1. The transfer of pollen grains from the anther of one plant to the stigma of another different plant is called cross-pollination.
2. It is also called xenogamy.
3. It occurs with the help of external agents called pollinating agents.

2. Example:

1. Anemophily by wind, zoophily by animals, and entomophily by insects are common examples of pollinating agents.
2. Anthropophily is artificial pollination that is carried out by human beings.