the three line of defences of your body against disease include all except.
The three lines of defense of the body against disease include physical and chemical barriers (such as the skin and mucous membranes), the innate immune system (such as white blood cells), and the adaptive immune system (such as antibodies). To answer your question, I need to know the options given to choose from.
The three lines of defense of the body against disease are:
1. First line of defense: Innate or non-specific barriers that prevent entry of pathogens into the body. This includes physical barriers like skin and mucous membranes, as well as secretions like tears, saliva, and stomach acid that help to inhibit the growth of pathogens.
2. Second line of defense: Innate immune responses that work to eliminate pathogens that have breached the first line of defense. This includes inflammation, phagocytosis (engulfing and destruction of pathogens by immune cells called phagocytes), natural killer cells that attack infected or abnormal cells, and the release of antimicrobial substances like interferons.
3. Third line of defense: Adaptive or specific immune responses that target specific pathogens and provide long-term immunity. This includes the action of lymphocytes, particularly T cells and B cells, which produce specific antibodies to eliminate pathogens and remember them for future defense.
Based on these three lines of defense, the option that does not belong is the "practicing good hygiene." While practicing good hygiene is important in preventing the spread of diseases, it is not considered one of the three lines of defense of the body against disease.