Which statement is true of NMDA receptors?
A. Activation of the NMDA receptor allows sodium and potassium ions into the nerve cell.
B. NMDA receptors are ionotropic.
C. Glutamate is an antagonist for the NMDA receptor.
D. The activity of the NMDA receptor is not dependent on magnesium ions.
Answer: B
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In the scientific use of the term, a "theory" is ________
a. a prediction about the outcome of a given experiment or study b. an organized system of assumptions and principles that purports to explain a set of observations and how they are related c. a precise definition of a term in a hypothesis, which specifies how it will be observed and measured d. a scientist's best guess about the cause of an event or phenomenon
As a teacher in the 1950s, Mr. Philips felt that the new immigrants that were placed in his class should learn how to "fit-in" not only in his class, but also in society
To him this meant they should refrain from speaking their native language and speak only English. This view of American society is known as the a. pluralistic society model. c. cultural assimilation model. b. multicultural education model. d. immersion education.