Abstract Background The prothoracic gland (PG). the principal steroidogenic organ of insects. has been proposed as a model for steroid hormone biosynthesis and regulation. Results To validate the robustness of the model. https://www.bekindtopets.com/mega-pick-Silbrade-Braid-Reinforced-Silicone-Tubing-1-4-ID-x-520-OD-x-1-hot-grab/