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.
pledge. v. to deposit personal property as security for a personal loan of money. If the loan is not repaid when due, the personal property pledged shall be forfeit to the lender. The property is known as collateral.To pledge is the same as to pawn.n a simple example, John asks to borrow $500 from Mary. Mary decides first that John will have to pledge his stereo as security that he will repay the debt by a specific time. In law John is called the pledgor, and Mary the pledgee. The stereo is referred to as pledged property.