a misguided reaction to foreign substances by the immune system a.allergy b.astma c.cancer d.surgery sana ung may explanation plss kundi nyo alm sagot wag nyo sagutin plss lng
An allergy is a misguided reaction to foreignsubstances by the immunesystem.It is said to be misguidedbecause these foreignsubstances(calledallergens)are generallyharmless