Resonance Tube Apparatus, Long version, Material: Acrylic, Mounted on retort stand with clamp and boss, with metal vessel, connecting tubing and spring clip supported on iron ring, Dimension: 120cm
Birth defects and folic acid unassembled kit, supplies for 10 students or groups, Core Concepts: The development of the nervous system begins early in a pregnancy, Prenatal testing may indicate abnormalities in the development process.