What is sex?


In biology, sexual reproduction is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into a male or female variety, each known as a sex. Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.

Read more about Sex.

Some articles on sex:

Married And Maiden Names - Same-sex Marriages
... Public and legal acknowledgment of same-sex marriage is well established in some regions, though still uncommon due to its illegality in most regions ... Trends in the nuptial naming practices associated with same-sex marriage are various and in flux ... Germany, Spain, Denmark, Sweden, and Norway, same-sex spouses or registered partners have the same legal options as heterosexual spouses to acquire, or—in the ...
Sex Industry - Other Participants
... The sex industry employs hundreds of people each day ... These range from the sex worker, also called adult service provider (ASP) or adult sex provider, who provides sexual services, to a multitude of support personnel ... Sex workers can be prostitutes, call girl, pornographic actors, pornographic models, sex show performers, erotic dancers, striptease dancers, telephone sex operators, cybersex operators, or ...
Gay Marriage in Ushuaia
... Further information Same-sex marriage in Argentina On 29 December 2009, the first homosexual couple to marry in Latin America were married in Ushuaia ... of Argentina at that time did not allow marriage between people of the same sex, Governor Fabiana Ríos issued a special decree allowing the couple to wed ... Same sex marriage became legal nationwide in Argentina a few months later, on July 15, 2010, after the approval of a gender-neutral bill by the ...
Sexual Dimorphism
... Sex differences in humans include, generally, a larger size and more body hair in men women have breasts, wider hips, and a higher body fat percentage ... – the competition between individuals of one sex to mate with the opposite sex ... these genera, the dimorphism may be tied to a sex chromosome, or to chemical signalling from females ...
Sex Industry
... The sex industry consists of businesses which either directly or indirectly provide sex-related products and services or adult entertainment ... The sex industry provides adult sex-related products and services such as prostitution, call girls, adult movie theaters, pornography, sex shops, strip ...

More definitions of "sex":

  • (noun): All of the feelings resulting from the urge to gratify sexual impulses.
    Example: "He wanted a better sex life"; "the film contained no sex or violence"
    Synonyms: sexual urge
  • (verb): Tell the sex (of young chickens).
  • (noun): Either of the two categories (male or female) into which most organisms are divided.
    Example: "The war between the sexes"
  • (noun): The properties that distinguish organisms on the basis of their reproductive roles.
    Example: "She didn't want to know the sex of the foetus"
    Synonyms: gender, sexuality