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Unit 3 Assignment 1 Answer Key Physical Barriers

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Physical barriers
1. The infection that will be cause in our body are protect by physical barrier, this also mentions the skin, tears, earwax and the acid that is limited in our stomach and all of these barriers have a similargathering in our body, which is to protect it.
Chemical defences
2. There is another defence that protects the body which is called chemical barrier; it includes enzymes like lysozyme which is produced in tear and acid like gastric juice which is also produced in our stomach to kill bacteria and toxins.This mentions these fatty acids like sebum in order to defence our skin and hyaluronic acid which contain gelatinous substance which can slow down the increasing of the harmful agents
Non-specific responses
3. There is another type of defence …show more content…
Vaccination
There will be certain pathogens which can be stopped with the help of vaccination and for many different pathogens: dissimilar vaccines will be needed as they won’t work the same on unalike pathogens and the vaccines will act the same way like a virus because when it will be introduced in our body, it can stimulates the white blood cells in our body that in order will produce few type of antibodies will defeat few type of pathogen which also can be vaccinated person can be at risk free from making any other type of diseases.
Screening programmes
It will be worked by detecting the signs of diseases for examples cancer and many other type of dangerous earlier than it will become more and more dangerous. Furthermore, this can always provide trusted method for an investigative test and many more treatment and also provide some test in order to decrease the amount of risk that will be able to increase the danger of the

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