Question

1. what is formed during the double fertilization process to help the sperm reach the egg in the ovary?

stamen
stigma
polar nuclei
pollen tube

Explanation:

In double - fertilization in plants, the pollen tube is formed. It grows from the stigma through the style to the ovary, providing a pathway for the sperm to reach the egg. Stamen is the male reproductive part of a flower, stigma is the part that receives pollen, and polar nuclei are involved in the formation of the endosperm during double - fertilization but do not help in sperm transport to the egg.

Answer:

D. pollen tube