Hand-Painted 3D Amphioxus Embryonic Stages Anatomical Model on Base, 10 x 9 inch Subcategory_Charts and Posters Eleven-ohm 5A air-cooled rheostat with

Eleven-ohm 5A air-cooled rheostat with constantan winding on a 300x44mm vitreous-enameled steel tube and a slide-bar carriage carrying a phosphor-bronze contact

mapping 32 keyed features across the subsurface

letting students directly observe pressure-volume changes under stacked weights

000x magnification animal cell model on mounted base reveals detailed organelle structure for comprehensive cell biology teaching

reorienting tubing runs through 90 degrees without kinking the line at the bend point

Hand-Painted 3D Amphioxus Embryonic Stages Anatomical Model on Base, 10 x 9 inch Subcategory_Charts and Posters Eleven-ohm 5A air-cooled rheostat withAmphioxus embryonic development model reveals gastrulation, neurulation, and chordate formation for vertebrate evolution and developmental biology teaching.