It is called experimenter bias
experimenter bias refers to the cognitive bias that held by researchers that might cause them to subconsciously influence the outcome of the experiment.
The most likelt cause of this bias is a situation where experimenters held a certain belief or expectation for the outcome of the experiment.
The correct answer to this open question is the following.
It seems that ypur question is incomplete because it doesn't include any context, reference, map, or something we can use to help you answer the question.
What tribes are you referring to? What is the time in history?
However, trying to help you, we can comment on the following.
We assume that you are referring to the European presence in Africa after the Berlin Conference of 1855. If that is the case, then we can say that what happened to tribes when the Europeans made these new borders was that they eliminate some borders, modified others, create new regions, moved tribes from their former territories, and displaced people.
This was a moment in history known as the Scramble for Africa," that started in 1885 and ended approximately in 1914.
The European countries involved in the partition of Africa were France, Great Britain, Portugal, Germany, Italy, Spain, and Belgium. In reality, these countries were only interested in colonizing Africa to exploit the many raw materials and natural resources of the continent.
The caste system regulated many aspects of live, such as what jobs one would have, whom one could marry and the position in the society.
These were taken to be almost impossible to change and they made the society less flexible, with less changes. People didn't see much change nor did they expect many changes, and this stability gave a sense of order.
Answer:
José Antonio Navarro, José Francisco Ruiz, and Lorenzo de Zavala
Explanation:
The second amendment in the Bill of Rights protects the right to bear arms.
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