Horsefly, Mouth Parts – Piercing and sucking mouth parts.
13 in stock
Portuguese Man of War tentacle. C.s. of tentacles to show batteries of nematocysts.
C.s For Study of general structure.
Onion Root Tip Slide, Showing various stages of Mitosis.
Cross section of older twig showing annual twigs and resin ducts. Pine has an endarch siponostele. B...