Parasitism is a relationship in which one organism (the parasite) benefits while the other(the host) is harmed. This is a positive, negative relationship. (Campbell)( Dionne L Rice Jr) The parasite usually lives on or inside the other organism. For example, mosquito is a parasite, feeding on a human while transferring the disease called Malaria.
Artificial brush fibres are most commonly made of nylon and polyethylene, though vinyl and steel wire are also used for certain applications. Nylon fibres are either tapered and split like hog bristles for use in paintbrushes or left untapered for making cleaning brushes, hair brushes, and toothbrushes.
Toothbrush is a dental instrument that is used to clean the teeth, along with toothpaste or mouthwash. It comprises the handle that is made from plastic and small nylon bristles fixated into the brushâs head. The modern designs of toothbrush offer wide range of styles and shapes in the market and they are mechanically produced. Generally, toothbrushes are made up of natural boar or nylon bristles and plastic handles.