Which of these describes a use of biostimulation?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

What is the difference between an igneous, sedimentary and metamorphic rock

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.