Part B The invention of the microscope and the improvement of techniques to study genetics are two
advancements in technology that have contributed to the development of the current system of
classification. How have these technological advancements changed the system that's used to classify
organisms?

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.