How does the egg of a flower become fertilized?
as soon as the pollen reaches the stigma
after the pollen grain descends down the style
when the pollen tube grows into the ovule
when the seed germinates

When the pollen tube grows into the ovule

Explanation:

Simmilar to animals, fertilization occurs when the egg (ovule) and the sperm join together to produce a new individual. In flowers, when the pollen tube grows into the ovlue is when pollen and ovule join together and fertilization occurs. A new seed is the produced, ready to produce a new individual.

is this for the e2020 class