Place the stages in the process of angiosperm pollination in the correct order beginning with the formation of pollen grains and ending with fertilization.
pollen grains form
fertilization takes place
the pollen tube extends down thru style
pollen tube reaches ovary, 2 sperm nuclei travel
down pollen tube
animals or wind moves pollen
pollen adheres to sticky end of stigma
the pollen grain grows a pollen tube