The three examples of plant products given are:

1. The succulent plant Aloe vera contains many chemicals that soothe and moisturize the skin. Extracts of this plant are used in many skin lotions as well as in burn and wound ointments.
2. The acoustical properties of Sitka spruce wood make it ideal for use in pianos, guitars, violins, and other musical instruments.
3. Cotton is used in countless products including thread, fabrics, bandages, carpeting, and insulation. Cotton fibers are outgrowths of the seed coat epidermis.