Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color drawing both DC and AC

drawing both DC and AC simultaneously with short-circuit protection via a 0

Five-cylinder equal-mass set at 30g each in zinc

and chewing mechanisms in health coursework

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

Features white enamel graduations every 50mL

Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color drawing both DC and ACBuilt for invertebrate study, this large earthworm dissection model reveals segmentation, nephridia, and digestive tract for annelid anatomy teaching.