What is the main purpose of the experiment step in the scientific method​

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.

1. what is the processes of leaves? 2. what is the adaptions in leaf?

Which of the above graphs represent the change in finch beak depth that would occur during a sustained drought