Which of the following make up the central nervous system?
A. the brain and the spinal cord
B. all neurons in the body
C. the spinal cord and the brain stem
D. the cranial nerves that enter and leave the underside of the brain
Answer: A
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Which technique ensures that personal characteristics that might affect the outcome of an experiment are scattered among research participants in the different groups, thereby making the groups roughly equivalent?
A. dependent recursion B. random assignment C. independent assignment D. regression to the mean
The complementary principle states that individuals who are not complimented, or otherwise made to feel appreciated, will eventually tire and leave the group.
a. True b. False
The two major active chemicals in opium are
A. morphine and codeine. B. heroin and cocaine. C. paregoric and laudanum. D. meperidine and oxycodone.
Spermatogenesis takes place in the
A) seminiferous tubules. B) Leydig cells. C) epididymus. D) vas deferens.