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reproductive group

См. также в других словарях:

  • Reproductive synchrony — is a term used in evolutionary biology and behavioural ecology. Reproductive synchrony sometimes termed ovulatory synchrony may manifest itself as breeding seasonality . Where females undergo regular menstruation, menstrual synchrony is another… …   Wikipedia

  • Reproductive rights — are rights relating to reproduction and reproductive health.cite journal |last=Cook |first=Rebecca J. |coauthors=Mahmoud F. Fathalla |year=1996 |month=September |title=Advancing Reproductive Rights Beyond Cairo and Beijing |journal= International …   Wikipedia

  • Reproductive justice — is a concept linking reproductive health with social justice. The term emerged from the work of reproductive health organizations for women of color in the United States in the 1990s. OverviewProponents of the concept of reproductive justice aim… …   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, animal — Introduction       any of the organ systems by which animals reproduce.       The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …   Universalium

  • Reproductive system — The reproductive system is a system of organs within an organism which work together for the purpose of reproduction. Many non living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system. [ …   Wikipedia

  • 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, human — Organ system by which humans reproduce. In females, the ovaries sit near the openings of the fallopian tubes, which carry eggs from the ovaries to the uterus. The cervix extends from the lower end of the uterus into the vagina, whose opening, as… …   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

  • Group selection — In evolutionary biology, group selection refers to the idea that alleles can become fixed or spread in a population because of the benefits they bestow on groups, regardless of the alleles effect on the fitness of individuals within that group.… …   Wikipedia

  • Group sex — For the 1980 Circle Jerks album, see Group Sex. For various uses of the word orgy , see Orgy. Peter Fendi, 1835 …   Wikipedia

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