Differentiate the basic and specialized /higher level profession

Between 1518 and 1548, spanish conquistadores conquered most of the new world, motivated by the a) desire for scientific knowledge. b)  to urge to claim more territory for spain. c) belief that an all-water western route to the orient existed. d) desire to advance national glory, serve god, and seek personal wealth.

Which of the following was not a result of early humans increasing proficiency at finding food

Many members of the civilized tribes farmed