What were some effects of the columbian exchange? africa grew wealthy from the slave trade, the americas gained gold from europe, and the merchant class of europe was born. africa’s population declined, the americas flourished with plants from europe, and wealth flowed in the european economy. african society was torn apart by the slave trade, the americas exported finished goods to europe, and european countries invested in the american stock market. west africa began agricultural farming, the americas were introduced to horses, and europe started funding state banks.

China wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong

Afull irb committee meeting is convened and one agenda item is a new research proposal to evaluate how mothers interact with their learning-disabled child. the inclusion criteria require the children to be a minimum of five years of age. the protocol requires the mother of the child to look at the child without any expression and not to talk to the child for three minutes. the committee determined that the mother's required task may upset the child. the irb approved the study with appropriate language in the parental permission form regarding the possibility that children might become upset. after the start of the study, the principal investigator reports to the irb that, as expected, one of the children became upset. the incident was handled according to the protocol and the child is fine. what should the irb do with regard to this report?

What was the midwest states often called because they were located in the center of the nation