Myelin is made up of fats and proteins and wraps around axons to ______.
a. store information
b. increase the speed of information transmission
c. protect the nerve
d. provide support and stability for the nerve
Ans: B
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How do psychostimulant drugs affect normal children?
a. induce a period of depression b. increase energy but decrease alertness c. have no observable effects on normal children d. improve attention and decrease motor activity
Increasing numbers of normal college students are illegally taking which of the following drugs in the hopes these drugs will help them to focus better while doing their school work?
a. Adderall and Ritalin b. GHB and Xanax c. mescaline and marijuana d. benzodiazepine and Rohypnol
In dating and marriage, the tendency to choose similar partners is called the _____ principle
a. matching b. homogeneity c. reciprocity d. compatibility
Who among the following is likely to be in the fourth month of pregnancy?
A. Maya, who felt her child kick for the first time B. Zeinab, whose fetus's head is half its total body length C. Zara, who is told that her child's gender can be determined in the following month D. Allison, whose fetus has a favorite position in the uterus