A ________ can be defined as a coiled-up thread of DNA.
A. chromosome
B. glial cell
C. neuron
D. cortisol
Answer: A
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Jack lives in a small apartment with his mother, father, and four brothers and sister. The family struggles to pay the rent and put food on the table. His mother has been quite depressed. Which of the following speaks to Jack's future?
a. Jack is at high risk for developing Down syndrome. b. Jack is at high risk for an externalizing problem. c. Jack is at high risk for an internalizing problem. d. Jack is at high risk for developing an eating disorder.
Why do many biologists and psychologists consider altruistic behavior a theoretical problem? a. Altruism benefits someone else more than the person doing the act
b. So far, researchers have not located the gene responsible for altruistic behavior. c. Most people engaging in an altruistic act do not feel good about it. d. Altruistic acts are more common toward nonrelatives than toward relatives.
When presented with words projected on a computer screen, individuals with borderline personality disorder are more likely than individuals without the disorder to remember the word a. celebrate
b. abandon. c. death. d. charming.
Research has found that low serotonin levels may be implicated in suicidal behavior because they affect all of the following EXCEPT a. impulsivity
b. instability. c. inertia. d. overreactivity.