What is the term that refers to the timeframe from exposure-to-infection-to-illness? virulence pathogenicity incubation period all of the above

Which biofeedback measurement is correct? ekg assesses electrical activity conducted by our muscles an emg is a test that assesses electrical activity conducted by the heart an eeg is a test that assesses electrical activity conducted by the adrenal glands a gsr is a test that assesses electrical activity conducted by the skin