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Show More, verb Phrases sex up, Informal.The sum of the structural and functional differences by which the male and female are distinguished, or the phenomena or behavior dependent on these differences.But this is not the whole story, and it applies universally only to mammals and birds.Examples from the Web for sex.Clinging to rocks and to each other, they form piles.Meaning "quality of being male or female" first recorded 1520s.Scruff believes that sex is not the primary concern of users.To codziennie nowe armowe sex filmy w najwyższej jakości video.Their common decency in attitude toward the other sex was the unique bond of union.Either of the two divisions, designated female and male, of this classification.Red tube z najbardziej znanych gwiazd i aktorek nago.Idioms and Phrases with sex sex see fair sex.Większość z tych rzeczy w tym darmowe filmy porno, zdjęcia erotyczne, sex tv gwiazdy porno dostępna jest całkowicie za darmo.If they are incubated below 30 degrees Celsius (86 F they become females.In these examples, sex sponsorki ogłoszenia the same animal can make fertile eggs and fertile sperm at different times in its life.Seks, see more synonyms for sex on m noun either the male or female division of a species, especially as differentiated with reference to the reproductive functions.
Late 14c., "males or females collectively from Latin sexus "a sex, state of being either male or female, gender of uncertain origin.
These animals are not hermaphrodites, like some worms, but literally change sex.
For instance, some species of lizards reproduce only by parthenogenesis-that is, their unfertilized eggs grow into adults, and these species no longer have males.