Research with rats indicates sugar is more additive than cocaine.
a. true
b. false
Ans: a. true
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Which heart condition increases the demand for myocardial oxygen?
1. Stable heart rate 2. Decreased muscle mass 3. Decreased systemic blood pressure 4. None of the above
Liquid nitrogen
a. is inert and safe b. is dangerous because it can replace the oxygen in the room c. is explosive d. B and C
With regard to developmental levels and characteristics of students, all of the following describe physical characteristics of middle school students EXCEPT:
a. increased peer influence. b. rapid and uneven growth. c. decreased effectiveness to learn motor skills. d. changes in physical traits.
When a person has a kidney stone (lith/o), he may need a lithotripsy. What is the meaning of -tripsy?
A) cutting out B) removing C) dissolving D) crushing