Why is it so difficult for many toxins and poisons to penetrate the blood-brain barrier?

a. Because the human immune system has killer t-cells that attack such foreign agents.
b. Because those agents are too large to get out of the human blood stream.
c. Because the presence of such invaders triggers a fever, which kills them.
d. Because those agents are not soluble in fat.


Answer: D

Psychology

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Which pseudopsychology mistakenly listed the part of the brain that controls hearing as a center for "combativeness" within a person's personality?

a. astrology b. palmistry c. graphology d. phrenology

Psychology

The difference threshold is the ________

a. ability of different species to detect varying aspects of electromagnetic waves, from radio waves to cosmic waves. b. smallest difference in stimulation that can be detected by an observer when two stimuli are compared. c. difference in absolute thresholds between individuals with normal sensory abilities and those who have limitations in one or more senses. d. difference between anatomical codes and functional codes when determining how individuals are able to experience so many different kinds of sensations.

Psychology

Phonology refers to the

A) meaning of words. B) arrangement of words and phrases. C) production of vocal sounds. D) uses of language.

Psychology

The DSM-5 criteria for intellectual disability reflect the idea that no single test of _________ should be used to determine diagnosis.

a. developmental progress b. cognitive functioning c. verbal ability d. abstract thinking

Psychology