The Columbian Exchange<span> was the widespread transfer of animals, plants, culture, human populations, technology, and ideas between the American and Afro-Eurasian hemispheres in the 15th and 16th centuries, related to European colonization and trade </span>after Christopher Columbus<span>'s 1492 voyage.</span>
Meta-analysis combines the findings of multiple studies to determine the strength of evidence for a specific research finding.
A meta-analysis is a quantitative, formal, epidemiological study design that is used to systematically assess previous research studies in order to draw conclusions about that body of work. A meta-results analysis's may include a more precise estimate of the effect of a treatment or risk factor for disease, or other outcomes, than any individual study that contributed to the pooled analysis. A critical outcome is the examination of variability or heterogeneity in study results. The advantages of meta-analysis include a consolidated and quantitative review of a large, often complex, and at times seemingly contradictory body of literature.The specification of the outcome and hypotheses that are tested, as well as a sensitive literature search, are critical to the conduct of meta-analyses.
To know more about Meta-analysis here-
brainly.com/question/17529431
#SPJ4
Yes, this is correct!
They are discriminatory in the sense that they treat some people differently then others, but they are correcting the wrongs in the sense that the people favoured by the affirmative action are discriminated in other ways, so such actions seek to make up for it.
Answer:
advantages: Reduces the Cost of Government: Controlling borders creates a financial drain on governments. For example, the United States spent $18.9 billion on border security in 2017, a figure estimated to increase to $23.1 billion in 2019. In addition, during 2018, the U.S. government spent $3.0 billion—$8.43 million per day—to detain illegal immigrants.
Stimulates the Economy: Throughout history, immigration has helped fuel the economies of nations. Often driven by poverty and lack of opportunity, immigrants are often eager to do much-needed work that citizens of their new countries are unwilling to do. Once employed, they contribute to the local economy and society. In a phenomenon dubbed the “immigration surplus,” immigrants in the workforce increase the nation’s level of human capital, inevitably increasing production and raising its annual Gross Domestic Product (GDP). For example, immigrants increase the GDP of the United States by an estimated $36 to $72 billion per year.
Creates Greater Cultural Diversity: Societies have consistently benefited from ethnic diversity resulting from immigration. The new ideas, skills, and cultural practices brought by new immigrants allow society to grow and thrive. Open borders advocates argue that diversity fuels an environment in which people live and work, thus contributing to greater creativity.
Disivanteges: Creates Security Threats: Open borders enable terrorism and crime. According to data from the U.S. Department of Justice, undocumented immigrants made up 26% total population of federal prisoners in 2018. In addition, U.S. border control officers seized nearly 4.5 million pounds of illegal narcotics at border crossings and ports of entry in 2018.
Drains the Economy: Immigrants increase the economy only if the taxes they pay exceeds the costs they create. This happens only if a majority of immigrants are well-educated and attain higher income levels. Historically, however, many immigrants represent a less-educated, lower-income demographic, thus creating a net drain of the economy.
Explanation:
File for the 2017-2018 FAFSA as soon as possible