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The Population Reference Bureau (PRB) Country ranking and comparison by TFR: 1970 and 2013 list is sourced and based on the data of the 2014 World Population Data Sheet, [16] which was published online. [17] [18] Forecast/prediction ranking lists: The UN ranking list is sourced from the United Nations World Population Prospects. Figures are ...
Inbreeding is also used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
Sex ratio by country for total population. Blue represents more males than the world average of 1.07 males/females. (2020) The human sex ratio is the comparative number of males with respect to each female in a population. This is a list of
Traditionally, farmers have discovered that the most economically efficient community of animals will have a large number of females and a very small number of males. A herd of cows with a few bulls or a flock of hens with one rooster are the most economical sex ratios for domesticated livestock.
Sex ratio by country for the population below age 15. Blue represents more boys, red more girls than the world average of 1.07 males/female. Sex ratio by country for total population. Blue represents more men and boys, red more women and girls than the world average of 1.01 males/female. Sex ratio by country for the over-65 population.
This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. The list also includes unrecognized but de facto independent countries. The figures in the table ...
Country Rate per . 1,000 women per year Number of abortions per year Year Age range Greenland 84.7 870 2022 [7] [8]: 17–64 Vietnam 64.0 1,630,000 2019 [9]: 15–49 Madagascar
These are lists of countries by foreign-born population and lists of countries by number native-born persons living in a foreign country (emigrants).. According to the United Nations, in 2019, the United States, Germany, Saudi Arabia, Russia and France had the largest number of immigrants of any country, while Tuvalu, Saint Helena, Ascension and Tristan da Cunha, and Tokelau had the lowest.