Existía un problema de fondo en Bolivia antes de la Guerra del Chaco. ¿Cuál era?

Which events are correlated but do not necessarily have a causal relationship?

Which areas where seperated by the iron curtain

Select the correct answer. in what type of immunity will the defenses be triggered and react in the same manner, regardless of the organism invading? a. adaptive b. innate c. primary d. mechanical barrier