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reproductive rate

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См. также в других словарях:

  • Reproductive compensation — was originally a theory to explain why recessive genetic disorders may persist in a population. It was proposed in 1967 as an explanation for the maintenance of Rh negative blood groups. [cite journal| author=Levin, BR| journal=American Journal… …   Wikipedia

  • Reproductive value (population genetics) — Fisher s reproductive value was defined by R. A. Fisher in his 1930 book The Genetical Theory of Natural Selection as the expected reproduction of an individual from their current age onward, given that they have survived to their current age. It …   Wikipedia

  • reproductive behaviour — In animals, any activity directed toward perpetuation of a species. Sexual reproduction, the most common mode, occurs when a female s egg is fertilized by a male s sperm. The resulting unique combination of genes produces genetic variety that… …   Universalium

  • reproductive system, plant — Introduction       any of the systems, sexual or asexual, by which plants reproduce. In plants, as in animals, the end result of reproduction is the continuation of a given species, and the ability to reproduce is, therefore, rather conservative …   Universalium

  • reproductive system disease — Introduction       any of the diseases and disorders that affect the human reproductive system (reproductive system, human). They include abnormal hormone production by the ovaries or the testes or by other endocrine glands, such as the pituitary …   Universalium

  • rate — 1. A record of the measurement of an event or process in terms of its relation to some fixed standard; measurement is expressed as the ratio of one quantity to another ( e.g., velocity, distance per unit …   Medical dictionary

  • Total fertility rate — Not to be confused with birth rate. A world map showing countries by fertility rate, 2005 2010 …   Wikipedia

  • Assisted reproductive technology — (ART) is a general term referring to methods used to achieve pregnancy by artificial or partially artificial means. It is reproductive technology used in infertility treatment, which is the only application routinely used today of reproductive… …   Wikipedia

  • Birth rate — Countries by birth rate in 2008 Not to be confused with Fertility rate. Crude birth rate is the nativity or childbirths per 1,000 people per year (in estimation review points).[1] Another word used interchangeably with birth rate is natality …   Wikipedia

  • Mare Reproductive Loss Syndrome — (MRLS) has been diagnosed in mares of all breeds and ages. It was initially observed in Kentucky in a three week period around the first of May, 2001, when about 20% to 30% of Kentucky s pregnant mares suffered abortions. The total economic loss… …   Wikipedia

  • Net reproduction rate — The net reproduction rate (NRR) is the average number of daughters that would be born to a female (or a group of females) if she passed through her lifetime conforming to the age specific fertility and mortality rates of a given year. This rate… …   Wikipedia

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