EXPLAIN 2 DIFFERENCES BETWEEN THE BREAD MAKING ANDALCOHOL PRODUCTION PROCESSES.

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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.

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?