Pregunta:
Mucus as the body's defence
Autor: Freya WatsonRespuesta:
Made in various places in the body, pathogens get trapped in the mucus and can then be removed from the body (by coughing, blowing the nose, swallowing etc)
0 / 5 (0 calificaciones)
1 answer(s) in total
Autor
Freya Watson