Nicole was given an assignment to report back to the class on lymphocytes. In addition to their function, she has to report on the body locations where they are produced. What will she tell the class?
a) "These antigens are produced in the thymus and the pancreas."
b) "These antigens are produced in the bone marrow and the pituitary."
c) "These white blood cells are produced in the pancreas and the pituitary."
d) "These white blood cells are produced in the bone marrow and the thymus."
D
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Because the speech center is generally located in the left hemisphere of the brain, a split-brain patient is unable to describe stimuli that are
a. seen in the left visual field. b. seen in the right visual field. c. presented directly in front of him or her. d. felt with the right hand.
Research by Woolley and colleagues (2008) suggest that when it comes to expertise and planning,
a. groups with experts can typically get away with not planning their strategy ahead of time, with little adverse effect on performance b. groups that create a clear plan for how to address a problem don't enjoy any extra benefits from having experts as members. c. expertise is much more important than planning when it comes to group performance. d. only groups that had experts and planned their actions ahead of time did well on a complex task.
Regarding insomnia, which of the following statements is FALSE?
a. About 60 million Americans have frequent or chronic insomnia. b. Insomnia can harm people's work, health, and relationships. c. If sleep problems last for more than one week, then a diagnosis of chronic insomnia can be made. d. If you have insomnia, it is usually best to get up and do something useful or satisfying until you feel that you are struggling to stay awake.
If you have a study in which 40 participants are randomly assigned to one of the four groups, the dfbetween = ______.
A. 36 B. 40 C. 3 D. 2