Afamous study, two social scientists raised a group of infant monkeys in complete isolation for the first few months of their lives. none had lived with a mother. later the scientists returned the monkeys to cages with other monkeys. when the monkeys reached adulthood, each was placed in a breeding cage with a monkey of the opposite sex. observers noted that the social, sexual, and emotional behavior of the isolated monkeys was distinctly abnormal. the females appeared fearful and viciously attacked the males when a sexual advance was made. the males, on the other hand, alternated between fear and overly enthusiastic, clumsy sexual advances. when a few of the females finally became pregnant and gave birth, they rejected the infants; some even killed their offspring.
a. female monkeys suffer little harm from early isolation.
b. social isolation has little influence on the development of monkeys.
c. social isolation can cause serious behavior

native american contribution: the patriots from britain learn how to hunt, fish, and introduce diversity within cultures.

african americans: indirectly introduced the idea of diversity to americans. africans coming to america because of slavery taught white americans that people come from different backgrounds and colors. it also built america's economic stability for a great period of time. 

women: make america what it is today. there are some societies that are in the world currently that do not give women the same right we give women here in the united states. because women have rights here in the united states, other countries' citizens strive to come to america, especially women, since they have equal rights in the united states. this is important because america is seen and desired by many in the world. 

children: children are our future. we learn from our elders and carry out things the same or differently learning from america's history. we continue tradition and change tradition if it is needed. 

what was the significance of the plessy vs ferguson ruling and jim crow laws

answer the impact. plessy v. ferguson allowed 'separate but equal, also known as segregation, to become law in the united states

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.