Formation of hair takes place due to ___________ derivative.
Select the appropriate words to fill in the blanks.
i theca interna ii granulosa cells iii secondary iv tertiary
i zona pellucida ii theca interna iii secondary iv tertiary
i granulosa cells ii zona pellucida iii secondary iv tertiary
i zona pellucida ii theca interna iii tertiary iv secondary
Formation of spectrum by a glass prism takes place because:
At the base of hair follicles is present a swollen inverted cup-like structure called ______.