Examples of chemical mutagens would be nicotine and other compounds in cigarette smoke that cause mutations involved in lung cancer.
Called bioconversion although it can also be referred to as bio transformation
A portal of entry<span> is the site through which micro-organisms enter the susceptible host and cause disease/infection. Infectious agents enter the body through various </span>portals<span>, including the mucous membranes, the skin, the respiratory and the gastrointestinal tracts.</span>
There is approx 4.7-5.5 liters of blood in his or her vascular system.
Answer:
complement is a system of plasma protiens that can be activated directly by pathogens
