D. the movement of people from rural areas to cities.
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Answer:
small bumps on paper for blind people to read
middle ear
Explanation:
No explanation
Answer: Demand characteristics.
Explanation:
Demand characteristics are the traits shown by participant of the research and experiment in which they behave according to the expectancy of researcher or experiment so that aim of the research can be accomplished .This creates biasness in research process and decrease validity of the experiment.
According to the question, John's positive reply to the situation where someone need helps if his/her car is broken displays the impact of demand characteristics .In actuality , he would probably not help the person by stopping and he just answered in positive manner to support the study.Thus, the reply is biased.
In 1750 slaves on farms had to seperate seeds from the cotton. As history went on the cotton gin was invented. The cotton do twoce the work a slave could do in a day. It was also cheaper to use a cotton gin than a real person.
Answer:
our state legislators are elected by their constituents. Therefore, they need your vote in order to remain in (or win) office. This is the primary source of your power.
Explanation:
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