Unlike mitosis, meiosis results in the formation of
a. diploid cells.
b. haploid cells.
c. 2n daughter cells.
d. body cells.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

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.

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter