Sex
Overview
In biology
Biology
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

, sex is a process of combining and mixing genetic
Genetics
Genetics , a discipline of biology, is the science of genes, heredity, and variation in living organisms....

 traits, often resulting in the specialization of organism
Organism
In biology, an organism is any contiguous living system . In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homoeostasis as a stable whole.An organism may either be unicellular or, as in the case of humans, comprise...

s into a male
Male
Male refers to the biological sex of an organism, or part of an organism, which produces small mobile gametes, called spermatozoa. Each spermatozoon can fuse with a larger female gamete or ovum, in the process of fertilization...

 or female
Female
Female is the sex of an organism, or a part of an organism, which produces non-mobile ova .- Defining characteristics :The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male...

 variety (each known as a sex). Sexual reproduction
Sexual reproduction
Sexual reproduction is the creation of a new organism by combining the genetic material of two organisms. There are two main processes during sexual reproduction; they are: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the...

 involves combining specialized cells
Cell (biology)
The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. The Alberts text discusses how the "cellular building blocks" move to shape developing embryos....

 (gamete
Gamete
A gamete is a cell that fuses with another cell during fertilization in organisms that reproduce sexually...

s) 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
Male
Male refers to the biological sex of an organism, or part of an organism, which produces small mobile gametes, called spermatozoa. Each spermatozoon can fuse with a larger female gamete or ovum, in the process of fertilization...

 gametes are small, motile, and optimized to transport their genetic information over a distance, while female
Female
Female is the sex of an organism, or a part of an organism, which produces non-mobile ova .- Defining characteristics :The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male...

 gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.

An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm
Sperm
The term sperm is derived from the Greek word sperma and refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell...

) while females produce female gametes (ova
Ovum
An ovum is a haploid female reproductive cell or gamete. Both animals and embryophytes have ova. The term ovule is used for the young ovum of an animal, as well as the plant structure that carries the female gametophyte and egg cell and develops into a seed after fertilization...

, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic
Hermaphrodite
In biology, a hermaphrodite is an organism that has reproductive organs normally associated with both male and female sexes.Many taxonomic groups of animals do not have separate sexes. In these groups, hermaphroditism is a normal condition, enabling a form of sexual reproduction in which both...

.
Quotations

If you give a man a hammer, he thinks he can solve all problems by pounding. Well, God gave men penises....

Jacob Appel in W:The Mistress of Wholesome|The Mistress of Wholesome (2007)

Once you've gotten two hands up somebody's ass, you aren't likely to feel jealous of a penis.

Patrick Califia|Pat Califia, Public Sex: The Culture of Radical Sex

Coition is a slight attack of apoplexy. For man gushes forth from man, and is separated by being torn apart with a kind of blow.

Democritus (ca. 4th century BC)

"Can a woman not keep her lover without she study to always please him with pleasure? Pew! then let her give up the game. Or shall my lover think with pleasing of me to win me indeed? Faugh! he payeth me then; doth he think I am for hire?"

Eric Rücker Eddison Mistress of Mistresses, published 1935

When authorities warn you of the sinfulness of sex, there is an important lesson to be learned. Do not have sex with the authorities.

Matt Groening, Life in Hell|Life in Hell

Give pleasure. Accept pleasure. It's that easy.

Kenneth Hanes, The Gay Guy's Guide to Life

Happy family: The existence and maintenance of [this] is thought to make a politician fit for public office. According to this theory, the public are less concerned by whether or not they are effectively represented than by the need to be assured that the penises and hairy vaginas of public officials are only used in legally sanctioned circumstances.

John Ralston Saul, The Doubter's Companion

Venereal: From Venus, the goddess of love, this word refers to the reality of desire. With the rise of Protestantism and science, the word "disease" was tacked on in a revealing combination of categorization and moralizing. "Which disease?" "The disease of love."

John Ralston Saul, The Doubter's Companion

 
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