All of the above
all options are related to the explanation of aids
Answer:
Neither observer nor subjects know which subject receives the vaccine and which receives a placebo
Explanation:
In a double-blind study neither the participants nor the experimenters is aware of who is receiving a particular treatment.
Its used to prevent bias in research results from demand characteristics or the placebo effect
Answer:
If warm moist air rises, it will expand and cool. As it cools, the relative humidity will increase and water will condense. It can then fall back to the earth as precipitation. ... As air rises, it expands because there is less atmospheric pressure at higher altitudes.
Explanation:
hope this helps :)
btw im in flvs to
Fat; they store twice as much energy per gram
Answer:
The correct answer is option d, that is, all of these.
Explanation:
The diets high in sugar can lead to tooth decay and cavities. A sugar enriched diet also increases the threat of type 2 diabetes. Obesity that is generally caused by eating too much sugar is regarded as the strongest risk element for diabetes. Apart from obesity, a diet rich in sugar leads to high levels of triglyceride and inflammation, enhanced levels of blood pressure and blood sugar, all these factors can contribute to a greater threat of heart disease.
