Why did the development of vascular systems plants to move out?

a. it allowed them to become sporophytes

b. it made it possible to convert sunlight to glucose

c. it made it possible to move water within the plant structure

d. it allowed gametes to live longer without water supply

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.