ATP and Cell energy Model Set, Includes: Carbon/Hydrogen/Oxygen/Nitrogen/Phosphorus atoms, Red links for high energy bonds, Gray links for single/double bonds, Illustrate that metabolic processes use ATP as an energy source/convert it back into inorganic phosphate/ADP
4D Anatomy Human Heart Model, 4.5in model contains 32 detachable, hand-painted medical education-quality organs and parts and a display stand, Also includes illustrated assembly guide and description of the anatomy, Has unique puzzle challenge, For ages 8plus
Animal cell, enlarged 20000 times, in somso-plast*. The model shows the recently discovered principles of the delicate structure of an animal cell. in one piece, on a stand with base. height: 52 cm, width: 39 cm, depth: 26 cm, weight: 3.7 kg.