Enzymes 3-D Model Kit-10 Student Model Template Sets and Teacher Guide, Vinyl Pouch, Assemble and use 3-D models to visualize and investigate key science structures, Perfect for use in the classroom, lab or at home, Satisfies NGSS Standards, Grade: 6 to 10, Material: Paper, LxW: 12X19in
Model Copd, is a chronic lung disease with severe narrowing of the airways, Dimensions: 15x11x8 cm, Even administering medication cannot fully cure this narrowing, normal condition, abnormal mucous secretion, thickening of the bronchial mucosa, permanent damage