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OpenStudy (anonymous):
What does the immune system protect the body against? changes of the internal body temperature changing environmental conditions changes caused by harmful pathogens changes in the pH of the blood
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OpenStudy (anonymous):
@eta @radar @kirbykirby @ParthKohli @sleepyjess
OpenStudy (anonymous):
I think it should be: Changes caused by Harmful pathogens as these are the foreign particles and any changes caused by them must be prevented by our body..
OpenStudy (anonymous):
thank you
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