When the postsynaptic cell is not depolarized, NMDA receptors
a. allow both sodium and calcium to enter the cell
b. are blocked by a molecule of calcium.
c. are blocked by a molecule of magnesium
d. allow potassium to leave the cell.
c
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Dr. Kurtz conducts an experiment to see if the odor of peppermint causes people to walk around a track more quickly than if they smell lavender or no odor at all. The null hypothesis would be that
a. The mean speed of the peppermint condition is the fastest of the three conditions b. The mean speed of the no odor condition is the fastest of the three conditions c. One of the conditions is faster than the others d. There is no difference in the mean speeds of the three conditions
Which of the following is an example of a characteristic that is NOT necessarily adaptive in modern environments?
A. Xenophobia B. Social anxiety C. Sexual selection D. Sexual desire
A 6-year-old and a 9-year-old both take the Wechsler Intelligence Scale for Children (WISC) and get exactly the same number of items correct. Who has the highest intelligence quotient (IQ)?
-the 9-year-old -If both children got the same number of items correct, their IQs should be the same. -There is no way of telling, as the children are of different ages.
Distinguish between correlational and true experimental research
What will be an ideal response?