Many medical studies include a control group in which patients receive a medically ineffective treatment that resembles the treatment tested. What do we call the ineffective treatment?
A. The hypothesis
B. The controlled experiment
C. The placebo
D. The dependent variable
Answer: C
You might also like to view...
The "steps" of the DNA double helix spiral staircase are
A) sugars. B) hydrogen bonds. C) base pairs. D) nucleotides.
Based on the endosymbiosis theory, which of the following used to be a free-living prokaryote?
a. mitochondria b. rough endoplasmic reticulum c. peroxisomes d. ribosomes
In human, the amount of air entering and leaving the lungs during inhalation and exhalation is called the:
1.Residual volume 2.Respiratory capacity 3.Tidal volume 4.Vital capacity
Each of the following citric acid cycle enzymes is subject to allosteric regulation except
A) isocitrate dehydrogenase. B) ?-ketoglutarate dehydrogenase. C) malate dehydrogenase. D) fumarate hydratase. E) pyruvate dehydrogenase.