Which type of leukocyte destroys tumor cells and cells infected with viruses?

A. T cells
B. B cells
C. Schwann cells
D. natural killer cells


Answer: D

Psychology

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Explain the similarities and differences between conversion disorder, factitious disorder, and malingering.

What will be an ideal response?

Psychology

The fact that Wendy becomes sad every June 23 because that was the day her husband died exemplifies the _______________ reaction

Fill in the blank(s) with correct word

Psychology

In your backyard you have a bird feeder from which a particular squirrel likes to eat. You have tried many ways to prevent it from stealing from it. You notice that the squirrel's random behavior gradually turns into goal-directed behavior. This best illustrates what Thorndike called the:

A. Law of Effect B. principle of continuity C. law of consequence D. classical conditioning

Psychology

In a study, math-proficient women are randomly divided into two groups. The first group is told that men usually do better on the type of math test the women are about to take. The second group is not told anything. Which outcome would you expect??

a. ?The second group did worse than the first. b. ?The second group did better than the first. c. ?There was no meaningful difference between the performances of the two groups. d. ?The first group did better than the second but not as well as men who took the test.

Psychology