refers to prejudicial attitudes, values, or beliefs that are unspoken and perhaps even outside of conscious awareness, whereas refers to prejudice that is verbalized and thus made public

Implicit prejudice; explicit prejudice.

Explanation:

As the exercise explains, both of this cases of prejudice involves negative attitudes against a certain individual, person, group, etc. In the first case, the implicit, the attitude is not openly talked, verbalized; it's unspoken. But, in the second case, the explicit prejudice involves the awareness of hatred or negative attitude of the individual. So, overall, in the first case the person is not completely aware of the thoughts, attitude or feelings, but on the second case it is completely.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.