2. which is an example of a passive solar energy system?
a sunlight heats water that is circulated through baseboard radiators
o
b
sunlight captured by solar cells charges batteries in the basement
c sunlight shining through windows warms a massive interior wall

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.