Mrs. pinheiro fell on a busy city sidewalk and broke her leg. although hundreds of pedestrians saw her lying on the ground, most failed to recognize that she was in need of medical assistance. their oversight best illustrates one of the dynamics involved

Bystander effect

Explanation:

The bystander effect is the situation where a person in need help but other people discourage an individual from intervening in the situation of emergency. When the number of bystanders increased then fewer chances to help a person who is in need. The social psychologist named Bibbe Latane and Darley gives the concept of the bystander effect in 1964. It has been given when a 28-year-old girl has been murdered in her apartment and no one helped her due to the diffusion of responsibility and bystander effect.

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.

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane