Betty believes she is less capable than her coworkers, even though she has won many awards for her performance. She often feels lonely and believes no one wants to be her friend. Her future seems empty and meaningless. These traits characterize

Mrs. Barnes is a 74-year-old healthy widow who has a good retirement pension. She most likely lives

A) alone. B) in a nursing home or other form of institutional care. C) with a sibling. D) with a son, daughter, or other family member.

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