Hard Mature Tube [TOP ◎]

: During a menstrual cycle, a "mature" egg is released from a dominant follicle in the ovary and enters the fallopian tube .

: Fruits are classified by their "pericarp" (wall) at maturity. A "stone fruit" (like a peach or cherry) has a hard, lignified stone (the tube-like or pit structure) surrounding the seed. hard mature tube

In modern medicine, "hard" materials are used to create "tubes" that support mature or aging biological systems. : During a menstrual cycle, a "mature" egg