A new drug apparently increases short-term memory. Students were divided randomly into two groups at the beginning of the semester. One group was given the memory pill once a day for the semester, and the other group was given a same-looking pill, but it was just sugar. The sugar pill is termed a(n) ________.
A. effective dose
B. variable
C. controlled pill
D. placebo
E. treatment pill
Answer: D
You might also like to view...
What enzyme converts chylomicron triacylglycerols into fatty acids and monoglycerides?
A. Hexokinase B. Pancreatic lipase C. Pepsin D. Pancreatic amylase E. Lipoprotein lipase
The plateau portion of the O2-Hb curve
a. is in the blood-PO2 range that exists at the pulmonary capillaries. b. means that hemoglobin becomes almost nearly saturated in the lungs unless the pulmonary capillary PO2 falls below 60 mm Hg. c. is in the blood-PO2 range that exists at the systemic capillaries. d. both (a) and (b) above. e. both (b) and (c) above.
As ________ increases, the two-point threshold decreases.
A. receptor sensation B. receptor sensitivity C. receptor number D. receptor density
The major calyces all empty into the _________.
A) Renal cortex B) Renal pyramid C) Ureter D) Renal pelvis