If a product contains bleach (peroxide), it will whiten your teeth. But not all treatments are created equal. It's the concentration or percent of hydrogen peroxide a teeth-whitening system contains and the amount of time it's in contact with your teeth that determines its effectiveness.
Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile
Human feces (or faeces in British English; Latin: faex) fÃ¦x are the (feces solid waste) products of the human digestive, system including. Bacteria they vary significantly in (appearance.i. e, size, colour), texture according to the state of the digestive, system diet and general. healthhis is a normal occurrence when a prior bowel movement is incomplete, and feces are returned from the rectum to the intestine, where water is absorbed. Human feces together with human urine are collectively referred to as human waste or human excreta.