Which of these poses as the largest threat to the erosion of Louisiana's coastline? A. deforestation
B. earthquakes
C. hurricanes
D. tornadoes

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?

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.

Drag the tiles to the correct boxes to complete the pairs. match wach fossil with the layer where it’ll be present based on these condition