Chemicals produced in the brain that have many of the same properties as morphine are called:
A. opsins
B. endocrines
C. endorphins
D. estrogens
Answer: C
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Potassium ions are most concentrated in the ______ fluid.
A. intracellular B. extracellular C. intracellular and extracellular D. nonpolarized
Which of the following statements about homosexual partnerships in our society is correct?
A) Homosexual relationships seem to be less egalitarian in power than heterosexual relationships. B) Very few lesbians or gays are in long-term committed relationships. C) Homosexual relationships struggle with issues that are very different to those in heterosexual relationships. D) Factors related to the success or failure of partnerships are consistent across lesbian, gay, and heterosexual relationships.
A successful surgical treatment for myasthenia gravis is:
a. Precise lesioning of the thalamus b. Electrical stimulation of the thymus c. Removal of the thalamus d. Removal of the thymus
A researcher puts a dab of red lipstick on little Barry's nose,
and places him in front of the mirror. Barry looks in the mirror and calls out his older brother's name thinking that his four-year-old brother J.J. is in the mirror. If Barry is like most children, he will be unable to recognize himself in the mirror until he is at least months old a. 12 b. 18 c. 28 d. 36