Answer: Double blind clinical trial
Explanation:
The situation that is seen here is double blind clinical trail in which neither the participant nor the practitioner knows who is receiving the treatment.
This is used to prevent biasing in the experiment which is caused due to demand characteristics or placebo effect.
Here, in this situation the dog handlers and the experimental observer both were blinded to identify the breath sample.
Answer: Calcium
Explanation:
The Vitamin D is an important vitamin and it is related with the element calcium in the body. The Vitamin D is responsible for the absoprtion of calcium in the body present in the food. In the deficiency or depletion of the Vitamin D in the body is likely to affect the calcium levels. The calcium is the main element present in the bones and the teeth. Calcium helps to build bones. In the condition which involves the depletion of Vitamin D levels the calcium levels will also deplete. This will result in conditions like oesteoporosis, rickets and other bone deformities.
Thus people in the northern climates receiving low sunlight, will likely to receive low Vitamin D and will likely to develop bone related problems due to low calcium levels.
<em>Five benefits of physical activity: </em>
1. It strengthens the body. - Physical
2. It prevents illness. - Physical and Emotional
3. It improves brain function. - Mental
4. It increases energy level. - Mental and Physical
5. It makes you feel happier. - Emotional and Social
Physical exercise is beneficial to all aspects of human existence whether physically, mentally, emotionally, socially, or spiritually. Once you are physically healthy, the rest follows. Everything is interconnected.
I THINK the answer is d. Not 100% sure.
No they shouldn’t. If you pop a blister you’re more likely to get an infection since it’s an open wound after you pop it. And if you get an infection the chances of you going into septic shock are high.
