Hand-Painted 3D Amphioxus Embryonic Stages Anatomical Model on Base, 10 x 9 inch Subcategory_Pipettes and intestine anatomy in teaching

and intestine anatomy in teaching position

and chloroplasts for introductory cell biology and botany teaching

Aluminum-bodied single pulley in a heavy-duty 4

Brass-tube resonance apparatus designed to amplify a struck tuning fork at specific air-column lengths

Sixteen-SWG bare constantan wire on a 125g reel — a copper-nickel alloy with a low temperature coefficient that holds resistance steady across a wide temperature range

Hand-Painted 3D Amphioxus Embryonic Stages Anatomical Model on Base, 10 x 9 inch Subcategory_Pipettes and intestine anatomy in teachingAmphioxus embryonic development model reveals gastrulation, neurulation, and chordate formation for vertebrate evolution and developmental biology teaching.