Someone suggested that everything to be sent to the base on moon must be sterilized so that no bacteria of any kind are present. Do you thing this is a good idea?

How does the carbon cycle involve an exchange of carbon

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

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.