Functional Heart & Circulatory System-This amazing working model of the human heart and circulatory system will bring your lecture to life! A complete schematic model of the human circulatory system with "blood" (colored water) that flows t
A simple diagram of the digestive system and where nutrients are absorbed from. Aloe has scientifically been proven to heal the inside of the digestive tract in the same way it heals and soothes the skin. Get your aloe from www.