Which factor makes some people think using smokeless tobacco is safe? a. no nicotine is absorbed. b. no carcinogens are present. c. no short-term effects result. d. no smoke is produced or inhaled.

Our emotions, such as anger, love, and fear, are reactions of the mind and body. select the best answer from the choices provided. t f

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

Which of the following accounts for someone who has had regular herpesvirus-mediated cold sore or genital sore flare-ups? a) re-infection by a closely related herpesvirus of a different strainb) re-infection by the same herpesvirus strainc) copies of the herpesvirus genome permanently maintained in host nucleid) copies of the herpesvirus genome permanently maintained in host cell cytoplasm