Carbon atoms only have 3 bonding sites (probably 4), while oxygen atoms only have 2 (should be 4)! Whoever produces them obviously does not care about their validity or usability in a scientific context. That aside, I'm recovering, so all is not lost.
KISSTAKER Removable Heart Visceral Educational Parts
3 Review
π©Ί Anatomical Laminated Respiratory Circulatory Pack: Enhancing Understanding and Visualization for Medical Professionals
3 Review
𦴠Explore the Intricacies of Human Skeleton with the Movable Skeleton Anatomy Model
3 Review
Heart Anatomy Poster Laminated Anatomical
3 Review