By 2030, what proportion of the U.S. population is expected to be 65 years of age or older?
a. 1 in 7
b. 1 in 6
c. 1 in 5
d. 1 in 4
e. 1 in 3
Question 2
Which of the following is a characteristic of the response to stress?
a. Men often follow a pattern of tend-and-befriend
b. Women usually engage in the fight-or-flight response
c. Older men and women tend to lose their ability to adapt to stress
d. Common psychological stressors in older people include alcohol abuse and smoking
e. The physiologic responses triggered by stress decrease the likelihood of physical responses to the stressors
Abiotic factors influence population densities.
Animal extinctions and human population growth.
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
The proportion of obese and extremely obese adults in the United States has increased over the past
Expected Distribution of IQ Scores
Population receiving welfare, 1960-2020