Dr. McKenzie decides to perform a Cesarean section in order to avoid potential harm to a baby during birth. She is most likely concerned about the mother's ________
a. exposure to lead during the last weeks of pregnancy.
b. outbreak of genital herpes.
c. cigarette smoking just before the onset of labor.
d. consumption of more than two alcoholic drinks per day.
Answer: b
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When does the first dramatic improvement in infant memory occur?
a. Prenatally b. Between 1-2 months of age c. Between 2-6 months of age d. Between 6-8 months of age
There are ten students in the pre-kindergarten class. Each student is shown eight colors and asked to name them. The number of colors correctly named by each student was: 8, 8, 8, 8, 7, 7, 6, 6, 5, 4 . What would be the median?
a. 4.0 b. 6.7 c. 7.0 d. 8.0
"Permeability" refers to the ability of the cell's
A. axons to form connections with other neurons. B. microtubules to transport substances within the cell. C. dendrites to receive information from other neurons. D. membrane to control the movement of substances into or out of the cell.
Specialized cells that are responsible for holding neurons together are called __________ cells
a) schwann b) glial c) amacrine d) bipolar