| Biological Sex |
Articles about Sex |
Website Links For Sex |
Information AboutBiological Sex |
| CATEGORIES ABOUT SEX | |
| sex | |
| sex sex | |
| sex | |
| reproduction | |
| genetics | |
| reproductive system | |
|
Sex refers to the Male and Female duality of Biology and Reproduction . Unlike Organism s that only have the ability to reproduce Asexually , sexed male and female pairs have the ability to produce offspring through Meiosis and Fertilization . The two sexes attract one another and communicate their readiness to procreate through differences in their biology. An organism's sex reflects its biological function in reproduction, not its Sexuality or other behavior. The female sex is defined as the one which produces the larger Gamete and which typically bears the Offspring . In contrast, the male sex has a smaller gamete and rarely bears offspring. In some animals, sex may be assigned to specific structures rather than the entire organism. Earthworm s, for example, are normally Hermaphrodites . ANIMAL SPECIES See Also: Animal sexuality Mating system Animal Sexual Behavior takes many different forms, even within the same Species . Researchers have observed Monogamy , Promiscuity , sex between species, sexual arousal from objects or places, Rape , Necrophilia , Sexual Orientation ( Heterosexuality , Homosexuality , Bisexuality and situational sexual behaviour) and a range of other practices among animals other than humans. Related studies have noted diversity in sexed bodies and Gender ed behaviour, such as Intersex and Transgender animals. The study of animal sexuality (and primate sexuality especially) is a rapidly developing field. It used to be believed that only humans and a handful of species performed sexual acts other than for Procreation , and that animals' sexuality was instinctive and a simple response to the "right" stimulation (sight, scent). Current understanding is that many species believed monogamous have now been proven to be promiscuous or opportunistic in nature, a wide range of species appear to both Masturbate and to use objects as Tool s to help them do so, in many species animals try to give and get sexual stimulation with others where procreation is not the aim, and homosexual behavior has now been observed among 1,500 species, and in 500 of those it is well documented. There are species that have 3, 4 or 5 sexes. For example:
HUMANS : ''See Human Sexuality for information about sexual activities, sexual sensation, sexual gratification, and sexual intimacy between human beings'' In humans, "sex" is often perceived as a dichotomous state or identity for most Biological and Social purposes - such that a person can only be ''female'' or ''male''. But many factors, including one's biology, environment, psychology and social context, have a role in determining how a particular person, and those around them, view their sex. Although the table below shows common differences between males and females, many people do not correspond to "male" or "female" with regard to every criterion. "Primary" Sexual Characteristics are typically present at birth and directly involved in reproduction. "Secondary" Sexual Characteristics typically develop later in life (usually during Puberty ) and are not directly involved in reproduction. Differences between the sexes are known as Sexual Dimorphism . At the ''biological level'' these differences are usually: Social and psychological issues See Also: Gender ;Gender discordance: See Also: transgender third gender ''Discordance'' is the term used to describe the extent to which people differ from the usual biological and psychosocial types described above. Some discordances are biological, such as when the sex of the chromosomes (''genetic sex'') does not match the sex of the external genitalia (''anatomic sex'') – this is known as Intersex . Discordances between the biological and psychosocial levels (such as when the Gender Identity does not match the anatomic sex) or between the various psychosocial levels (such as when the Gender Role does not match the Gender Identity ) are even more common, but less well understood. In ), ferm (female pseudohermaphrodite) and herm ( True Hermaphrodite ). Although she was heavily criticized, her idea demonstrates the difficulty and imperfection of the current social responses to these variations. ;Social and legal considerations: See Also: Sociology of gender Forms of legal or social distinction or Discrimination based on sex include Sex Segregation and Sexism . Notably, some businesses, public institutions, and laws may provide privileges and services for one sex and not another, or they may require different sexes to be physically separated. Recently, western societies have moved towards greater sexual equality. SEE ALSO
REFERENCES # http://www.columbia.edu/itc/hs/pubhealth/modules/reproductiveHealth/anatomy.html # http://www.humanhormones.com/category/steroids/androgens/ # http://www.bbc.co.uk/science/humanbody/sex/articles/testosterone.shtml # http://www.sciencedaily.com/releases/2007/05/070523105948.htm EXTERNAL LINKS AND FURTHER READING |
|
|