Migratory Labor Developed in Africa During the Last of the Colonial

question 19

Multiple Choice

Migratory labor developed in Africa during the last of the colonial era because

• A) the Europeans took the only jobs within their own colonies.
• B) work was almost impossible to find except in cities, in mines, and on plantations.
• C) Europe had introduced a cash economy, and Africans had to go where the paying jobs were.
• D) both a and b
• E) both b and c

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Definitions:

Non-associative Learning

A type of learning in which an organism’s response to a stimulus changes in the absence of any association with a positive or negative reinforcement.

Sensitization

An increased reaction to a stimulus following repeated exposure to it, often used in the context of allergic reactions or drug tolerance.

Long-term Potentiation

A lasting increase in signal transmission between two neurons that results from their simultaneous activation, believed to be a cellular mechanism underlying learning and memory.

Synaptic Connections

The points at which neurons (nerve cells) communicate with each other, passing messages through chemical signals.