Female gametophytes in angiosperms are hidden and protected. Where are they found, and what are they called?

Hidden inside ovules, Embryo sac

Explanation:

Angiosperms are a group of plants that have flowers as their reproductive structures.

The ovule is a structure found on the flower that gives rise to and contains the female reproductive cells.

It is the female gametophyte of a seed plant. It is found inside the ovules. that consists of a thin walled sac within the nucellus and contains the egg nuclei and other nuclei that become endosperm upon fertilization.