What is a benefit of using placebos in an experiment??
A) ?All of the subjects are similar.
B) ?All of the subjects receive pills.
C) ?Neither the subjects nor the researchers know who is receiving treatment.
D) ?One group of subjects receives a treatment and the other group receives nothing.
B
You might also like to view...
The pyloric sphincter opens into the ________.
a. large intestine b. rectum c. small intestine d. colon e. bile duct
What is thought to promote the development of brain senile plaques and neurofibrillary tangles??
A) ?oxidative stress B) ?excess acetylcholine C) ?dietary deficiency of choline D) ?low blood levels of homocysteine
Where does the body's supply of glucose primarily come from during intense exercise?
A) Glycogen stores B) Fat stores C) Protein stores D) Oxygen E) c and d
Complex carbohydrates include _____.
A. glucose, glycogen, and most types of fiber B. glucose, sucrose, and fructose C. starches, glycogen, and most types of fiber D. starches, glucose, and sucrose E. starches, glycogen, and glucose