What process of the carbon cycle is likely causing the increase in carbon dioxide levels shown in the graph above?

What is the cause hearing loss in human being

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart

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.