Which type of cells increase immunological activity within the immune system?

T-helper cells

The immune system relies on the action of white blood cells, also known as leukocytes, to identify and eliminate foreign substances called antigens, such as viruses, bacteria, and other pathogens. White blood cells play a crucial role in the body's defense mechanisms by producing antibodies and directly destroying invaders. Within the immune system, there are different types of white blood cells, including T cells, B cells, and natural killer (NK) cells. T cells are responsible for directly attacking and destroying intruders, while T-helper cells enhance the immune response.