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