â¢ Humoral immunity is mediated by B-cells while cell-mediated immunity is mediated by T-cells. â¢ In the humoral immunity, the B-cells secrete antibodies whereas in the cell-mediated immunity, the T-cells do not secrete receptors. T-cell receptors are bound to the T-cells and the cells themselves bind with antigens.
The M.P.D. as it appears in-game. The M.P.D. is a pyramid-shaped Vril machine, with a circular indented interface at the front that, when the Vril Generator is applied, grants the power to control the Aether's energy. When powered by souIs, it is able to open a direct portal to the Aether, which drove Richtofen insane and give him Schizophrenia.
Marine Protected Areas (MPAs) are versatile management tools that can be used to help conserve marine natural and cultural resources, and can be an integral part of an ecosystem approach to management.