Agood model of the cell membrane would be a. a chain chalk fence b. a film of food wrap c. a wall of stones and mortar d. a river with objects floating in it

Which type of respiration takes place when there is no oxygen present

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.

What are the four stages of cell signaling?