A .The event at the end of the Devonian (Dev.) resulted in an increase in the number of Cambrian faunas. B .The event at the end of the Cretaceous resulted in an increase in the number of Paleozoic faunas.
C .The event at the end of the Triassic (Tri.) resulted in the extinction of fewer faunas than in any other period.
D .The event at the end of the Cretaceous resulted in the extinction of more faunas than in any other period.

Rotenone is an insecticide that is toxic

The combining form leuk/o means red true or false

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.