Bio-based material is an organic material that is derived from a live, renewable resource, usually plant, and occasionally animal. Common examples of bio-based materials are corn, soy, wood, linoleum, straw, humus, manure, bark, cotton, spider silk, chitin, fibrin, and bone. Bio-based materials are primarily used as biofuels, but they are also used for bio-plastics and consumer goods. Other common uses include packaging, coatings, foams, cleaners, and adhesives. Common examples of bio-based products include detergents, plywood/particleboard, soy-based plastics, or a variety of bio-based packaging products, the most common of which is the paper bag. Bio-based materials are becoming ever more significant as an alternative to fossil-based products because they come from renewable resources.