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.
Answer:
naturalistic observation
Explanation:
In naturalistic observation, researchers will gather data by directly observing the subjects in their natural habitat without making any intervention.
This is what Professor Ober is doing.
Professor Ober wants to collect a data about development of their physical skills among children. This means that the <u>children are his research subjects.</u>
To collect his data, professor Ober observed the children in the playground (which is the children's natural habitat). He also did not told the children to do anything , he just quietly observe and let the children do what they usually do. (not making any intervention)
<span>Miner found that the appearance and health of their bodies loomed largest as a dominant concern in the ethos of the nacirema.</span>
The right answer for the question that is being asked and shown above is that: "B. He helped negotiate peace <span>agreements between Israeli and PLO leaders. C. He helped bring about a stock-market surge, low unemployment, minimal inflation, and general prosperity. D. He supported a welfare reform billed that increased the number of people receiving welfare."</span>
