Answer:
Hidden inside ovules, Embryo sac
Step-by-step 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.