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What is Mother and explain in detail?
A mother is the female parent of a child. A woman may be considered a mother by virtue of having given birth, by raising a child who may or may not be her biological offspring, or by supplying her ovum for fertilisation in the case of gestational surrogacy.
An adoptive mother is a female who has become the childs parent through the legal process of adoption. A biological mother is the female genetic contributor to the creation of the infant, through sexual intercourse or egg donation. A biological mother may have legal obligations to a child not raised by her, such as an obligation of monetary support. A putative mother is a female whose biological relationship to a child is alleged but has not been established. A stepmother is a woman who is married to a childs father and they may form a family unit, but who generally does not have the legal rights and responsibilities of a parent in relation to the child.
A father is the male counterpart of a mother. Women who are pregnant may be referred to as expectant mothers or mothers-to-be, though such appellations are less readily applied to (biological) fathers or adoptive parents. The process of becoming a mother has been referred to as "matrescence".The adjective "maternal" refers to a mother and comparatively to "paternal" for a father. The verb "to mother" means to procreate or to sire a child, or to provide care for a child, from which also derives the noun "mothering". Related terms of endearment are mom (mama, mommy), mum (mummy), mumsy, mamacita (ma, mam) and mammy. A female role model that children can look up to is sometimes referred to as a mother-figure.

Types of motherhood
Biological mother
Biological motherhood for humans, as in other mammals, occurs when a pregnant female gestates a fertilized ovum (the "egg"). A female can become pregnant through sexual intercourse after she has begun to ovulate. In well-nourished girls, menarche (the first menstrual period)  usually takes place around the age of 12 or 13.Typically, a fetus develops from the viable zygote, resulting in an embryo. Gestation occurs in the womans uterus until the fetus (assuming it is carried to term) is sufficiently developed to be born. In humans, gestation is often around 9 months in duration, after which the woman experiences labor and gives birth. This is not always the case, however, as some babies are born prematurely, late, or in the case of stillbirth, do not survive gestation. Usually, once the baby is born, the mother produces milk via the lactation process. The mothers breast milk is the source of antibodies for the infants immune system, and commonly the sole source of nutrition for newborns before they are able to eat and digest other foods; older infants and toddlers may continue to be breastfed, in combination with other foods, which should be introduced from approximately six months of age.Childlessness is the state of not having children. Childlessness may have personal, social or political significance. Childlessness may be voluntary childlessness, which occurs by choice, or may be involuntary due to health problems or social circumstances. Motherhood is usually voluntary, but may also be the result of forced pregnancy, such as pregnancy from rape. Unwanted motherhood occurs especially in cultures which practice forced marriage and child marriage.

Non-biological mother
Mother can often apply to a woman other than the biological parent, especially if she fulfills the main social role in raising the child. This is commonly either an adoptive mother or a stepmother (the biologically unrelated partner of a childs father). The term "othermother" or "other mother" is also used in some contexts for women who provide care for a child not biologically their own in addition to the childs primary mother.
Adoption, in various forms, has been practiced throughout history, even predating human civilization. Modern systems of adoption, arising in the 20th century, tend to be governed by comprehensive statutes and regulations. In recent decades, international adoptions have become more and more common.
Adoption in the United States is common and relatively easy from a legal point of view (compared to other Western countries). In 2001, with over 127,000 adoptions, the US accounted for nearly half of the total number of adoptions worldwide.

Surrogate mother
A surrogate mother is a woman who bears a child that came from another womans fertilized ovum on behalf of a couple unable to give birth to children. Thus the surrogate mother carries and gives birth to a child that she is not the biological mother of. Surrogate motherhood became possible with advances in reproductive technologies, such as in vitro fertilization.
Not all women who become pregnant via in vitro fertilization are surrogate mothers. Surrogacy involves both a genetic mother, who provides the ovum, and a gestational (or surrogate) mother, who carries the child to term.

Lesbian and bisexual motherhood
The possibility for lesbian and bisexual women in same-sex relationships to become mothers has increased over the past few decades due to technological developments. Modern lesbian parenting originated with women who were in heterosexual relationships who later identified as lesbian or bisexual, as changing attitudes provided more acceptance for non-heterosexual relationships. Other ways for such women to become mothers is through adopting, foster parenting or in vitro fertilization.

Transgender motherhood
Transgender women may have biological children with a partner by utilizing their sperm to fertilize an egg and form an embryo. For transgender women, there is currently no accessible way to carry a child. However, research is being done on uterus transplants, which could potentially allow transgender women to carry and give birth to children through Caesarean section. Other types of motherhood include adoption or foster parenting. However, adoption agencies often refuse to work with transgender parents or are reluctant to do so.

Social role
The social roles associated with motherhood are variable across time, culture, and social class.
 Historically, the role of women was confined to some extent to being a mother and wife, with women being expected to dedicate most of their energy to these roles, and to spend most of their time taking care of the home. In many cultures, women received significant help in performing these tasks from older female relatives, such as mothers in law or their own mothers.

Regarding women in the workforce, mothers are said to often follow a "mommy track" rather than being entirely "career women". Mothers may be stay at home mothers or working mothers. In recent decades there has been an increase in stay at home fathers too. Social views on these arrangements vary significantly by culture: in Europe for instance, in German-speaking countries there is a strong tradition of mothers exiting the workforce and being homemakers. Mothers have historically fulfilled the primary role in raising children, but since the late 20th century, the role of the father in child care has been given greater prominence and social acceptance in some Western countries. The 20th century also saw more and more women entering paid work. Mothers rights within the workforce include maternity leave and parental leave.
The social role and experience of motherhood varies greatly depending upon location. Mothers are more likely than fathers to encourage assimilative and communion-enhancing patterns in their children. Mothers are more likely than fathers to acknowledge their childrens contributions in conversation. The way mothers speak to their children ("motherese") is better suited to support very young children in their efforts to understand speech (in context of the reference English) than fathers.Since the 1970s, in vitro fertilization has made pregnancy possible at ages well beyond "natural" limits, generating ethical controversy and forcing significant changes in the social meaning of motherhood. This is, however, a position highly biased by Western world locality: outside the Western world, in-vitro fertilization has far less prominence, importance or currency compared to primary, basic healthcare, womens basic health, reducing infant mortality and the prevention of life-threatening diseases such as polio, typhus and malaria.
Traditionally, and still in most parts of the world today, a mother was expected to be a married woman, with birth outside of marriage carrying a strong social stigma. Historically, this stigma not only applied to the mother, but also to her child. This continues to be the case in many parts of the developing world today, but in many Western countries the situation has changed radically, with single motherhood being much more socially acceptable now. For more details on these subjects, see Legitimacy (family law) and single parent.
The total fertility rate (TFR), that is, the number of children born per woman, differs greatly from country to country. The TFR in 2013 was estimated to be highest in Niger (7.03 children born per woman) and lowest in Singapore (0.79 children/woman).In the United States, the TFR was estimated for 2013 at 2.06 births per woman. In 2011, the average age at first birth was 25.6 and 40.7% of births were to unmarried women.

Health
A maternal death is defined by WHO as "the death of a woman while pregnant or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy, from any cause related to or aggravated by the pregnancy or its management but not from accidental or incidental causes".About 56% of maternal deaths occur in Sub-Saharan Africa and another 29% in South Asia.In 2006, the organization Save the Children has ranked the countries of the world, and found that Scandinavian countries are the safest places to give birth, whereas countries in sub-Saharan Africa are the least safe to give birth. This study argues a mother in the bottom ten ranked countries is over 750 times more likely to die in pregnancy or childbirth, compared to a mother in the top ten ranked countries, and a mother in the bottom ten ranked countries is 28 times more likely to see her child die before reaching their first birthday.
The most recent data suggests that Italy, Sweden and Luxembourg are the safest countries in terms of maternal death and Afghanistan, Central African Republic and Malawi are the most dangerous.Childbirth is an inherently dangerous and risky process, subject to many complications. The "natural" mortality rate of childbirth—where nothing is done to avert maternal death—has been estimated as being 1500 deaths per 100,000 births. Modern medicine has greatly alleviated the risk of childbirth. In modern Western countries the current maternal mortality rate is around 10 deaths per 100,000 births.

Religious
Nearly all world religions define tasks or roles for mothers through either religious law or through the glorification of mothers who served in substantial religious events. There are many examples of religious law relating to mothers and women.
Major world religions which have specific religious law or scriptural canon regarding mothers include: Christianity, Judaism, and Islam. Some examples of honoring motherhood include the Madonna or Blessed Virgin Mother Mary for Catholics, and the multiple positive references to active womanhood as a mother in the Book of Proverbs.
Hindus Mother Goddess and Demeter of ancient Greek pre-Christian belief are also mothers.

Mother-offspring violence
History records many conflicts between mothers and their children. Some even resulted in murder, such as the conflict between Cleopatra III of Egypt and her son Ptolemy X.
In modern cultures, matricide (the killing of ones mother) and filicide (the killing of ones son or daughter) have been studied but remain poorly understood. Psychosis and schizophrenia are common causes of both, and young, indigent mothers with a history of domestic abuse are slightly more likely to commit filicide. Mothers are more likely to commit filicide than fathers when the child is 8 years old or younger. Matricide is most frequently committed by adult sons.In the United States in 2012, there were 130 matricides (0.4 per million people) and 383 filicides (1.2 per million), or 1.4 incidents per day.

In art
Throughout history, mothers have been depicted in a variety of art works, including paintings, sculptures and written texts, that have helped define the cultural meaning of ‘mother’, as well as ideals and taboos of motherhood.
Fourth century grave reliefs on the island of Rhodes depicted mothers with children.Paintings of mothers with their children have a long tradition in France. In the 18th century, these works embodied the Enlightenments preoccupation with strong family bonds and the relation between mothers and children.At the end of the nineteenth century, Mary Cassatt was a painter well known for her portraits of mothers.
American poet, essayist and feminist Adrienne Rich has noted “the disjuncture between motherhood as patriarchal institution and motherhood as complexly and variously lived experience”. The vast majority of works depicting motherhood in western art history have been created by artists who are men, with very few having been created by women or mothers themselves, and these often focus on the “institution of motherhood” rather than diverse lived experiences. At the same time, art concerning motherhood has been historically marginalized within the feminist art movement, though this is changing with an increasing number of feminist publications addressing this topic.The institution of motherhood in western art is often depicted through “the myth of the all-loving, all-forgiving and all-sacrificing mother” and related ideals. Examples include works featuring the Virgin Mary, an archetypal mother and a key historical basis for depictions of mothers in western art from the European Renaissance onwards. Mothers depicted in dominant art works are also primarily white, heterosexual, middle class and young or attractive.These ideals of motherhood have been challenged by artists with lived experience as mothers. An example in western contemporary art is Mary Kelly’s Post-Partum Document. Bypassing typical themes of tenderness or nostalgia, this work documents in extensive detail the challenges, complexities and day-to-day realities of the mother-child relationship. Other artists have addressed similar aspects of motherhood that fall outside dominant ideals, including maternal ambivalence, desire, and the pursuit of self-fulfillment.   While the ideal of maternal self-sacrifice and the ‘good mother’ forms an important part of many works of art relating to the Holocaust, other women’s Holocaust and post-Holocaust art has engaged more deeply with mothers’ trauma, taboos, and the experiences of second and third-generation Holocaust survivors