Name the substance that genes are composed of that determines the nature of every cell in the body and how it will function

What is the ratio of the number of persons aged 65 years or older to the number of persons aged 20 to 64 years (number of persons aged 65 years or older/number of persons 20 to 64 x 100) referred to as?

a. Medicare ratio b. old-age dependency ratio c. older-adult-to-younger-adult ratio d. Social Security ratio

Which of the following aspects of love does a person's culture impact?

a. How easily he or she falls in love b. With whom he or she falls in love c. How the relationship proceeds d. All of these