Final answer:
The type of adaptive immunity in which T cells destroy virus-infected or cancer cells is cellular mediated immunity.
Step-by-step explanation:
The type of adaptive immunity in which T cells destroy virus-infected or cancer cells is cellular mediated immunity. Cellular immunity utilizes T cells to neutralize cells that have been infected with viruses or certain bacteria. There are three types of T cells involved in the cell-mediated immune response: cytotoxic T cells, helper T cells, and suppressor T cells.