The definition of symbiosis has varied among scientists. Some believe symbiosis should only refer to persistent mutualisms, while others believe it should apply to any type of persistent biological interaction (i.e. mutualistic, commensalistic, or parasitic).
The Golden Pledge, which is a System Plus Warranty with a 20 year leak guarantee, can pay for itself within the first ten years, sometimes many times over. The System Plus transforms the normal warranty by removing the small print.
Golden Key is the world's largest honour society and is a mission focused, values based and demographics driven organization. With 36 years of rich tradition, Golden Key remains committed to scholarship, career development, leadership and community service.Golden Key South Africa started in 2000, has 14 active chapters currently and touched the lives of more than 70,000 South Africans.Golden Key is a nonprofit organization under Section 501(c)(3) of the U.S. Internal Revenue Code and a registered Section 21 company in South Africa.olden Key is the world's largest honour society and is a mission focused, values based and demographics driven organization. With 36 years of rich tradition, Golden Key remains committed to scholarship, career development, leadership and community service.