Professor Rhodus is lecturing about selective permeability of neurons. What would he tell the class?
A. All ions can only travel in one direction across the membrane.
B. All molecules must cross the membrane via a designated channel.
C. Only certain molecules can cross the membrane freely.
D. Only sodium and potassium ions can cross the membrane.
Answer: C
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Which one of the following statements best explains the meaning of "science as liberal"?
a. Scientific results often challenge political and religious orthodoxy. b. The majority of scientists are liberal in political outlook. c. Scientists are attracted to research on liberal topics. d. Scientific research is often supported by liberal groups.
In which of the following situations would the effects of environmental variability be
larger than the effects of genetic variability? a. An isolated tribal society b. A medieval society in which only the rich or religious received any formal education c. An orphanage where all children receive the same care d. A North American suburb e. One MZ twin prefers to play the violin, and the other MZ twin prefers to play the piano
The SPIT (Smarty Pants Intelligence Test) defines intelligence as the frequency of correct SPIT answers. This is an example of a(n):
a. Independent variable b. Conceptual definition c. Dependent variable d. Operational definition
Which of the following is not true of the Affordable Care Act (ACA) of 2010?
A. The U.S. government has allocated funds to treat all mentally ill people whether or not they have insurance. B. The ACA recognizes the increasing role of primary care providers in psychiatric treatment. C. Insurance plans must cover mental health treatment. D. Insurance plans must cover substance abuse treatment.