When nicotine binds to nicotinic acetylcholine receptors in the brain, this causes the release of a specific neurotransmitter. identify this neurotransmitter, and the effects that it has on the brain.

Nh3 +02-no + h20 is unbalanced what is the balanced equation

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.

Bio molecules are essential to all living things. which biomolecule is “d” from the table