During young adulthood, the immune system experiences a decrease in effectiveness because ____
a. the production of T cells and B cells declines
b. the production of white blood cells and red blood cells increases
c. the production of melatonin and vitamin D decreases
d. the speed of the central nervous system and the frontal lobe decreases
Answer: A
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Which of these individuals is experiencing visual agnosia?
a. Tim, who cannot see as a result of a sensory deficit b. Ted, who knows what an object is for, but who does not know its name c. Teresa, who cannot move her mouth muscles to name an object d. Tess, who does not recognize a pencil as something meaningful
Jennifer and Marta are 7-year-old twin sisters. When their mother tells them—angrily and for the third time—to clean up their playroom
As they work, Jennifer starts to cry and says her mother is mean. Marta says their mom is just mad they didn't do it the first time she asked. This difference is an example of ________ in action. a. classical conditioning b. latent learning c. social-cognitive theory d. sibling rivalry