Wladimir köppen’s climate system was developed before 1850 around 1900 about 1950 after 1990

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

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.

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?