Relacionar Columnas 1.22 Inmune system concepts (D)Versión en línea Some inmune system concepts por Jorge Arizpe 1 Any external biological agent that can harm the host 2 Sustancia que al introducirse en el organismo induce en este una respuesta inmunitaria, provocando la formación de anticuerpos. 3 Pathogens that live outside the cells. 4 We are born with this type of inmunologycal defense. 5 They are the first barrier 6 These are part of the second barrier 7 We acquired this type of inmunologycal defense along aour lives. 8 This are pathogens that need to live inside a cell. 9 These are part of the Third barrier