AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

TRANSFUSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a factor for a low birth rate?
A
When children no longer contribute to the family’s economic survival.
B
When most people are living in urban areas.
C
When most of the population has access to medicine and/or health care.
D
All of the above
Explanation: 

Detailed explanation-1: -Education of women, urbanization, improved hygiene and preventive care, economic improvement with better living conditions, and declining mortality of infants and children are the major factors.

Detailed explanation-2: -Fertility rates also may be influenced by infant mortality rates, women’s participation in the labor market, income levels and social status, among other factors.

Detailed explanation-3: -The problem with low fertility is that it reduces population size not at all ages but only among the young. Low fertility produces an age structure that creates a momentum for future population decline, a situation that must be stopped at some point if the population is to be demographically sustainable.

There is 1 question to complete.