<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>
Answer:
both
Explanation:
if you brush your teeth both befor and after you eat you can avoid any type of infection in your mout sooooo even if you cant do this judt brush your teyh teice a day will help
The diagnostic test that records the electrical activity of the heart is called ECG or Electrocardiogram. An ECG is a painless and simple test, which uses electrodes arranged and attached to your skin, and records the activity of the heart. ECG detects any abnormal rhythm and pattern of the heart beat and this helps doctors in diagnosing arrhythmias.