Question

What is immunity? Discuss the natural defence
mechanism that our body has to protect us from
germs.​

Answer 1

Answer:

immunity is a self defence mechanism of the body which protects us from diseases caused by external pathogens like bacteria, virus, protozoa etc. it scans the foreign cells and takes action when it sees them as harmful or for some pathogens which can disguise as normal cells, it takes action when realizing that the body structure is changing because of the new cells. when it takes action and fights the disease causing pathogens, we get side effects like fever, cold, headache etc. this is a good thing as this tells us that our immune system is functioning properly. when it successfully defeats the pathogen, the 'T-cells' of the immune system remember the information of the pathogen so that our body can be ready if this pathogen or anything similar to it attacks our body in the future.

Our immune system is a perfect example for the statement "Our Body structure and mechanism is a very beautiful thing"