Stamped concrete refers to the process of decorating concrete once it has been laid by an installer. Professional landscaping and patio companies use the same type of concrete used in driveways and other projects, and the material consists of a sandy substance that the installer mixes with water.
The major organs of the immune system are bone marrow, thymus, spleen and lymph nodes. These organs produce lymphocytes required to destroy bacteria, virus, tumor cells, etc. This article dwells on these major immune system organs that protect the human body from infections.
The bone marrow, the lymph nodes, the spleen, and the thymus are the organs that are part of the immune system, all of which work together to produce the different types of wh â¦ ite blood cells which keep you alive. 2 people found this useful.he bone marrow, the lymph nodes, the spleen, and the thymus are the organs that are part of the immune system, all of which work together to produce the different types of wh â¦ ite blood cells which keep you alive. 2 people found this useful.