An embolism is a blood clot that forms in a blood vessel. based on that description, explain what a pulmonary embolism is and its potential effect on the body's circulation

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.

Polar zones are cold and tend to be dry because of a pressure system of cold. low high

Brepresent the dominant allele for brown fur, and b represents the allele for white fur. if two rabbits with the genotype bb reproduce, what are the possible phenotypes for their offspring