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.
Best Answer: mature sperm made up of three parts. the head which contains the genetic material of the father, the neck or midpiece that contains tons of mitochondria and the flagella which contain many microtubules needed for cell movement. Also the head contains a thin layer called the acrosome which contains enzymes needed to fertilize.