The 3Rs by Russell and Burch are known to be the "alternative methods" to improve the treatment of laboratory animals, at the same time to advance the quality of science that uses animals for studies.
The 3Rs are Replacement, Reduction, and Refinement. Replacement is defined as minimizing the pain and suffering of the animals used in research. Reduction is for reducing the number of animals being used, and using healthier animals. Replacement is using alternative to animals such as tissue cultures and computer models.
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Explanation:
I don't see any choices? But I would guess "advertisements" or media.
Answer:I. Doing Research in the Social Sciences
A. Unlike many other kinds of scientists, sociologists do most of their research in the real world, not in a laboratory
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control of strategic routes
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