1, the temperature of freezing in fahreneit is A. 32 degrees
b 20 degrees
c, 47 degrees
d 73 degrees

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

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.