BILAYERED THECA APPEARS FIRST IN __ OVARIAN FOLLICLES Select one: primary Graafian primordial secondary

The correct answer is: primordial.<br /><br />The bilayered theca, which consists of an inner theca interna and an outer theca externa, appears first in the primordial ovarian follicles. These primordial follicles are the earliest stage of follicular development in the ovaries. The theca cells play a crucial role in the production of androgens, which are then converted to estrogen by granulosa cells within the follicle.