<span>Cytotoxic T cells recognize specfic antigens on the MHC sites to respond to an infection whereas NK cells are innate response and don't rely on antigen.</span>
Start by drinking water when you are hungry.
Your body may feel hungry but often times a cup of water will do the trick.
I don't mean skip meals. But perhaps you just ate lunch and are wanting that bag of chips, substitute the water for the chips.
Well go to it and don't go anywhere where it isn't safe
The answer is C- It’s harder for tobacco companies to attract new smokers without advertising.
