Genetic research suggests that schizophrenia and ______ disorder may share underlying mechanisms.
a. posttraumatic stress
b. major depressive
c. bipolar
d. generalized anxiety
Ans: C
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During her morning walk, Vicki has encountered a strange dog and fear has enveloped her. Just then the dog's owner appears, pets his dog, and introduces himself and his dog to Vicki. The dog begins to wag its tail, and Vicki even pets the dog as she breathes a sigh of relief. As she begins the rest of her walk, Vicki's heart rate begins to slow down and her formerly sweaty palms are now dry. Her
calmer demeanor is due to the __________nervous system. a. somatic b. central c. sympathetic d. parasympathetic
Why does grass appear green?
a. The pigment in chlorophyll absorbs most of the red, blue, and violet wavelengths of light, and the green is reflected. b. The pigment in chlorophyll reflects most of the red, blue, and violet wavelengths of light, and the green is absorbed. c. The red pigment reflects all the wavelengths of light, leaving only various shades of green. d. The blue pigment absorbs all the wavelengths of light, and various amounts of green are absorbed.
The hyperpolarization observed following an action potential is the result of a. potassium continuing to leave the cell
b. chloride continuing to enter the cell. c. sodium continuing to enter the cell. d. potassium returned to the cell by the sodium-potassium pumps.
Shyness is purely biological
Indicate whether the statement is true or false.