Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy demonstrating mechanical advantage as the

demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope

81-piece physics mechanics kit covers comprehensive laboratory investigations through force analysis

and membrane systems for introductory cell biology teaching

Open back reveals spine and posterior musculature while the head section preserves upper-body context

Hand-Painted 3D Starfish Sectional Anatomical Model on Base, 18 x 16 inch Light & Optics_Spectroscopy demonstrating mechanical advantage as theThree dimensional starfish sectional model reveals echinoderm anatomy, water vascular system, and radial symmetry for marine biology teaching.