I believe it the answer is B. Men made the tools and hunted for food. I hope this helped.
To block the formation of cancerous tumors.
A-B-A-B design could provide the most valid non intervention measure with demonstration of experimental control.
In statistics, the experimental design, also known as the design of experiment (DOE), is described as the layout of an information-gathering experiment in which a variation may or may not be present. Typically, controlled experiments use this phrase. In order to make the results more reliable, these tests minimize the impacts of the variable. In this design, a group of people, plants, animals, etc. may participate in an experimental unit's procedure.
Pre-experimental research designs are the most straightforward kind of experimental research designs in statistics. Following the identification of some factors as causes and effects, a group or groups are kept under observation in this method. Typically, this approach is used to determine whether the targeted group need additional research. This is the reason why this procedure is regarded as being economical.
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tok presentation is to show you knowledge on a topic or subject so if you were a general business instructor you could show the information in a way that your employees could understand
The response to circumstances as well as events which brings about threats to individuals and also tax or affect their coping abilities is stressor.
What is a stressor?
A stressor is an event or a condition or external stimulus that cause stress or a state of tension. Anything that causes the release of stress hormones is a stressor, there re two types of stressors- Physiological (physical) stressors and Psychological stressor.
What is a Psychological stressor?
"The are events, situations, individuals, comments, or anything we interpret as negative or threatening" The statement above described is a psychological stressor. Hence Option C <u>Stressor </u>is the correct answer.
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