What percentage of a person's DNA is likely to be non-coding DNA?

Why is the median age (the age at which half the population is older and half is younger) rising in the developed world?

A) The baby boom generation is dying off. B) Fertility is declining and the baby boomers have entered later life. C) Birth rates are going up. D) Life expectancy is decreasing.

Which statement best characterizes Kohlberg's conclusions concerning moral development?

a. Moral development is not related to intelligence. b. People could skip lower stages of moral development. c. Moral development proceeded unpredictably. d. Moral development is acquired across time.