While it is difficult to separate these factors, they can be broken down into five major categories: Most developing nations of the world face development challenges as a result of a combination of these factors. The majority of the development issues discussed in this chapter, however, have been created and continue due to the direct actions of humans. The very high rate and level of development experienced by most rich countries of the world is another factor which perpetuates many challenges faced by people in developing countries.
This article throws light upon the five main factors affecting fertility in women.
Biological factors like age and sex are very important in affecting fertility. Fecundity depends on the woman and her age. It is only the woman who can bear a child with the onset of menstruation.
This process stops when menopause begins. Thus the onset of menstruation and menopause are the biological limits to fertility in the case of a woman. The start of the first menstrual period, known as menarche, depends on climate, health, food, etc. In cold climate, it may start at the age of 15 years whereas in hot climate at the age of 10 years.
It may start earlier in the case of a healthy girl and late in a weak and ailing girl. The reproductive span of females is years. But it is not uniform. In the early years, their fecundity is low. It is the highest between 20 to 25 years. After that, it starts declining slowly up to 38 years and then rapidly till the age of years when it totally stops.
There are no such limits in the case of a male who can beget children even in old age. So fertility depends upon biological factors like age and sex.
There are physiological factors which affect the fecundity period of women. They are in fact, the periods in the reproductive pattern of a woman when she is not able to conceive and is sterile. Sterility in a woman may be due to a number factors.
In societies where a girl is married at an early age, the interval between cohabitation and the birth of the first child is longer because the girl is not developed physically to bear the child. This is called adolescent sterility. Besides, there are certain periods when a woman does not conceive after the birth of a child.
She is temporarily sterile. It takes a few months for a woman to resume the menstrual cycle without which she cannot conceive. Where breastfeeding is practised, the birth of the other child is delayed during that period.
Some couples may have primary sterility. They may not have any child throughout their lives either by choice or due to their inability. There may also be secondary sterility when due to an accident, infection, disease or any other impairment, the couple is unable to give birth to a child.
Fertility is also affected by abortion, deliberate or natural, and still births.Start studying Factors that influence Birth and Fertility rates (TEAS). Learn vocabulary, terms, and more with flashcards, games, and other study tools.
natural that factors that affect human development in a country also affect infant mortality rates, and vice versa. This paper empirically tests for factors affecting infant mortality rates. Based on a cross-sectional model (covering countries for the year ) that corrects for heteroscedas- income countries, taken from all 6.
Multiple reasons. One is that birth control and sex education are simply more widely available in wealthy countries. In poor countries, many have no form of birth control other than abstinence, which is not a . APES Chapter 6 study guide by jessicaweed includes 73 questions covering vocabulary, terms and more.
factors that affect birth rates and fertility rates APES Chapter 22 terms. AP Environmental Science Chapter 5. terms. APES Chapters 3,4,5 Study Questions.
Features. Economics influence fertility rates more than other factors Date: April 30, Source: University of Missouri-Columbia Summary: Based on a recent study by an anthropologist, economic changes. Multiple factors influence mortality and are important to consider in financial planning for retirement.
There appears to be a link between genetic factors and mortality rates. Genetics may.