Chemical substances in the nervous system that are similar in structure and in action to opiates—such as heroin and morphine—are:
a. hormones.
b. endorphins.
c. androgens.
d. neurotransmitters.
Answer: b
You might also like to view...
Compared with bacterial meningitis, viral meningitis is
A. less common and less dangerous. B. less common and more dangerous. C. more common and less dangerous. D. more common and more dangerous.
_____ involve(s) a person's judgment that his or her goals can be achieved and _____ refer(s) to beliefs that successful plans can be crafted to reach the goal
A) ?Pathways; optimism B) ?Agency; optimism C) ?Agency; pathways D) ?Pathways; agency
Researchers use the __________ approach to determine if changes in an independent variable cause differences in a dependent variable
a. correlational b. descriptive c. survey d. experimental
Neurons communicate with one another
A. by releasing neurotransmitters into the synapse. B. by releasing hormones from the hypothalamus. C. through the pituitary gland. D. using androgens.