Butter will keep for a long time refrigerated. Up to 6 weeks. You can also freeze this product and it will keep for over a year.   Hi - I only accessed this question as I hâ¦ave just tried some butter I had in the fridge. It is now Sunday 14th June 2009.
Sperm can be stored inside the male body for approximately 3 weeks after they've matured, after which they die inside the body if not ejaculated. So the entire sperm life cycle inside a man's body if not ejaculated (10 week maturation time + 3 week storage lifespan) is approximately 13 weeks or about 3 months.
Where do the sperm cells mature? A textbook says they mature in the epididymis. However, sertoli cells are present in the seminiferous tubule, which nourish the developing the sperm cells until they are mature. Sertoli cells are present in the seminiferous tubule, not the epididymis.perm cells finish the maturation process in the epididymis, but they begin their journey in the seminiferous tubules. These tubules are located inside the testes where sperm production begins.