The concept of old-age dependency ratio refers to ________
a. the ratio of children to elderly people.
b. the ratio of elderly women to elderly men.
c. the ratio of working-age adults to non-working elderly people.
d. the ratio of people over age sixty-five to those under forty.
Question 2
Assume you have a business that provides products to older people. Looking ahead, you have reason to expect ________
a. increasing sales, because your target population is increasing in size.
b. decreasing sales, because your target population is getting smaller.
c. little change in sales, because your target population will remain stable.
d. that your target population will increasingly be men.
The oxygen isotope curve illustrates the ratio between 16O and 18O.
Kyo and jitsu-concept of energy deficiency and excess from shiatsu.
Sofia and Matthew put off having children
Ratio of College Wages to High-School Wages
Examples of how the recessive gene for straight hair passes from parents to children
Risk factor for children age 2 to 3