Two students are creating a presentation for the class explaining the level of biological organization. Their presentation would explain that -
F an organism is part of a community
G a community is part of a population
H a population is part of an organism
an ecosystem is part of a community

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.