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The genitourinary system, or urogenital system, are the sex organs of the reproductive system and the organs of the urinary system. [1] These are grouped together because of their proximity to each other, their common embryological origin and the use of common pathways.
The first fossilized evidence of sexual reproduction in eukaryotes is from the Stenian period, about 1.05 billion years old. [19] [20]Biologists studying evolution propose several explanations for the development of sexual reproduction and its maintenance.
is the average number of people infected from one other person. For example, Ebola has an of two, so on average, a person who has Ebola will pass it on to two other people.. In epidemiology, the basic reproduction number, or basic reproductive number (sometimes called basic reproduction ratio or basic reproductive rate), denoted (pronounced R nought or R zero), [1] of an infection is the ...
Labeled anatomy of the human vulva and nearby structures. The vulva is of all of the external parts and tissues and includes the following: [3] Clitoris: an organ located at the top of the vulva.
Time period: c. 100 CE to present Descendants • ⅋ Sisters: Greek letter ϗ (ligature of κ, α and ι similarly to &) Armenian letter և (ligature of ե and ւ, pronounced /jɛv/; եւ is the Armenian word for "and");
Gordonstoun school in Scotland Prince Andrew with his parents and brother Edward at the opening of the 1978 Commonwealth Games in Edmonton, Alberta. Andrew was born in the Belgian Suite of Buckingham Palace on 19 February 1960 at 15:30 (), [9] the third child and second son of Queen Elizabeth II and Prince Philip, Duke of Edinburgh.
In physical cosmology, baryogenesis (also known as baryosynthesis [1] [2]) is the physical process that is hypothesized to have taken place during the early universe to produce baryonic asymmetry, the observation that only matter and not antimatter (antibaryons) is detected in universe other than in cosmic ray collisions.