he main digestive function of the stomach is ___. Select one: A. destroying bacteria with gastric acid B. secretion of intrinsic factor C. chemical digestion of fat D. chemical digestion of proteins

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Why has two different alleles for the same trait?

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.