Which structure is found in some but not all plant cells? vacuole
ribosome
cell wall
lysosome

Number and variety of living organisms includes genetic, species, and ecological types

If your blood becomes too concentrated with iona, what will happen to the red blood cells

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.