29-554: Italian male given name Pietro Pronunciation Italian: [ˈpjɛːtro] Gender Male Language(s) Italian Name day June 29 Origin Region of origin Italy Other names Related names Peter , Pietra [REDACTED] Look up Pietro in Wiktionary, the free dictionary. Pietro
58-503: A Y chromosome , which codes for the production of larger amounts of testosterone to develop male reproductive organs . In humans, the word male can also be used to refer to gender , in the social sense of gender role or gender identity . The use of "male" in regard to sex and gender has been subject to discussion . The existence of separate sexes has evolved independently at different times and in different lineages , an example of convergent evolution . The repeated pattern
87-495: A sexual system called androdioecy . They can also coexist with females and hermaphrodites, a sexual system called trioecy . The sex of a particular organism may be determined by a number of factors. These may be genetic or environmental, or may naturally change during the course of an organism's life. Although most species have only two sexes (either male or female), hermaphroditic animals, such as worms , have both male and female reproductive organs. Not all species share
116-452: A common sex-determination system . In most animals , including humans , sex is determined genetically ; however, species such as Cymothoa exigua change sex depending on the number of females present in the vicinity. Most mammals , including humans , are genetically determined as such by the XY sex-determination system where males have XY (as opposed to XX in females) sex chromosomes . It
145-454: A few species. Anisogamy appears to have evolved multiple times from isogamy; for example, female Volvocales (a type of green algae) evolved from the plus mating type. Although sexual evolution emerged at least 1.2 billion years ago, the lack of anisogamous fossil records make it hard to pinpoint when males evolved. One theory suggests male evolved from the dominant mating type (called mating type minus). A common symbol used to represent
174-418: A way of displaying traits that signify their fitness . Sexual selection is believed to be the driving force behind the development of these characteristics. Differences in physical size and the ability to fulfill the requirements of sexual selection have contributed significantly to the outcome of secondary sex characteristics in each species. In many species, males differ from females in more ways than just
203-456: Is also possible in a variety of species, including humans, to be XX male or have other karyotypes . During reproduction , a male can give either an X sperm or a Y sperm, while a female can only give an X egg. A Y sperm and an X egg produce a male, while an X sperm and an X egg produce a female . The part of the Y-chromosome which is responsible for maleness is the sex-determining region of
232-489: Is an Italian masculine given name. Notable people with the name include: People [ edit ] Pietro I Candiano (c. 842–887), briefly the 16th Doge of Venice Pietro Tribuno (died 912), 17th Doge of Venice, from 887 to his death Pietro II Candiano (c. 872–939), 19th Doge of Venice, son of Pietro I A–E [ edit ] Pietro Accolti (1455–1532), Italian Roman Catholic cardinal Pietro Aldobrandini (1571–1621), Italian cardinal and patron of
261-515: Is different from Wikidata Pages with Italian IPA All set index articles Male Male ( symbol : ♂ ) is the sex of an organism that produces the gamete (sex cell) known as sperm , which fuses with the larger female gamete, or ovum , in the process of fertilisation . A male organism cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually . Most male mammals , including male humans, have
290-423: Is sexual reproduction in isogamous species with two or more mating types with gametes of identical form and behavior (but different at the molecular level) to anisogamous species with gametes of male and female types to oogamous species in which the female gamete is very much larger than the male and has no ability to move. There is a good argument that this pattern was driven by the physical constraints on
319-460: Is true for many species of birds where the male displays more vibrant colors than the female, making them more noticeable to potential mates. These characteristics have evolved over time as a result of sexual selection, as males who exhibited these traits were more successful in attracting mates and passing on their genes. Pietro Germi Pietro Germi ( Italian pronunciation: [ˈpjɛːtro ˈdʒɛrmi] ; 14 September 1914 – 5 December 1974)
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#1732847927462348-607: The Palme d'Or . He studied acting and directing at Rome's Centro Sperimentale di Cinematografia . During his time in school, Germi supported himself by working as an extra, bit actor, assistant director, and, on occasion, writer. Germi made his directorial debut in 1945 with the film Il testimone . His early work, this film included, were very much in the Italian neorealist style; many were social dramas that dealt with contemporary issues pertaining to people of Sicilian heritage. Through
377-844: The Knights Hospitaller and cardinal Pietro Bernini (1562–1629), Italian sculptor Pietro Borghese (1398–1484), also called Pietro della Francesca, Italian painter of the early Renaissance Pietro Bianchi (disambiguation) Pietro Campilli (1891–1974), Italian economist and politician Pietro Carnesecchi (1508–1567), Italian humanist Pietro Cascella (1921–2008), Italian painter and sculptor Pietro Cataldi (1548–1626), Italian mathematician Pietro Crinito (1475–1507), known as Crinitus or Pietro Del Riccio Baldi, Florentine humanist scholar and poet Pietro Dusina , Italian priest and inquisitor Pietro Erardi (1644–1727), Maltese chaplain and painter F–M [ edit ] Pietro Facchetti (1539–1613), Italian painter of
406-1128: The Renaissance Pietro Pastore (1908–1969), Italian footballer and actor Pietro Pedranzini (1826-1903), Italian Lieutenant Pietro Perti or Peretti (1648–1714), Italian Baroque sculptor and architect Peter S. Pezzati (1902–1993), aka Pietro Pezzati, American portrait painter Pietro Pezzati (artist) (1828–1898), Italian mural painter Pietro Porcinai (1910–1986), Italian landscape architect Pietro Scalia (born 1960), Italian-American film editor Pietro Scarcella (born 1950), Italian-Canadian mobster Pietro Antonio Solari (c. 1445–1493), Italian architect and sculptor Pietro or Pier Paolo Vergerio (c. 1498–1565), Italian religious reformer Pietro De Vico (1911–1999), Italian film actor Pietro Vierchowod (born 1959), Italian football manager and former player Pietro Vinci (c. 1525–1584), Italian composer Pietro Ziani (died 1230), 42nd Doge of Venice Fictional characters [ edit ] Pietro Maximoff , fictional Marvel Comics superhero known as Quicksilver Pietro,
435-650: The Y-chromosome, the SRY . The SRY activates Sox9 , which forms feedforward loops with FGF9 and PGD 2 in the gonads , allowing the levels of these genes to stay high enough in order to cause male development; for example, Fgf9 is responsible for development of the spermatic cords and the multiplication of Sertoli cells , both of which are crucial to male sexual development. The ZW sex-determination system , where males have ZZ (as opposed to ZW in females) sex chromosomes, may be found in birds and some insects (mostly butterflies and moths ) and other organisms. Members of
464-615: The arts Pietro Anastasi (1948–2020), Italian former footballer Pietro di Antonio Dei, birth name of Bartolomeo della Gatta (1448–1502), Florentine painter, illuminator and architect Pietro Aretino (1492–1556), Italian author, playwright, poet, satirist, and blackmailer Pietro Auletta (1698–1771), Italian composer known mainly for his operas Pietro Baracchi (1851–1926), Italian-born astronomer Pietro Bellotti (1625–1700), Italian Baroque painter Pietro Belluschi (1899–1994), Italian architect Pietro Bembo (1470–1547), Italian scholar, poet, literary theorist, member of
493-621: The context of gender , such as for gender role or gender identity of a man or boy . For example, according to Merriam-Webster, "male" can refer to "having a gender identity that is the opposite of female". According to the Cambridge Dictionary, "male" can mean "belonging or relating to men". Male can also refer to a shape of connectors . Species that are divided into females and males are classified as gonochoric in animals, as dioecious in seed plants and as dioicous in cryptogams . Males can coexist with hermaphrodites,
522-425: The dominant individual in a group becomes female while the other ones are male. In many arthropods , sex is determined by infection with parasitic , endosymbiotic bacteria of the genus Wolbachia . The bacterium can only be transmitted via infected ova, and the presence of the obligate endoparasite may be required for female sexual viability. Male animals have evolved to use secondary sex characteristics as
551-400: The female and male gamete-producing organisms and structures but also the structures of the sporophytes that give rise to male and female plants. The evolution of anisogamy led to the evolution of male and female function. Before the evolution of anisogamy, mating types in a species were isogamous : the same size and both could move, catalogued only as "+" or "-" types. In anisogamy,
580-475: The historical evidence favours "the conclusion of the French classical scholar Claude de Saumaise (Salmasius, 1588–1683)" that it is derived from θρ , the contraction of a Greek name for the planet Mars, which is Thouros . Borrowed from Old French masle , from Latin masculus ("masculine, male, worthy of a man"), diminutive of mās ("male person or animal, male"). In humans, the word male can be used in
609-529: The insect order Hymenoptera , such as ants and bees , are often determined by haplodiploidy , where most males are haploid and females and some sterile males are diploid . However, fertile diploid males may still appear in some species, such as Cataglyphis cursor . In some species of reptiles, such as alligators , sex is determined by the temperature at which the egg is incubated. Other species, such as some snails , practice sex change: adults start out male, then become female. In tropical clown fish ,
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#1732847927462638-1411: The late Renaissance Pietro Ferrari (footballer, born 1906) , Italian retired footballer Pietro Ferraris (1912–1991), Italian footballer Pietro Ferrero (disambiguation) Pietro Fontana (engraver) (1762–1837), Italian engraver Pietro Fontana (engineer) , early 19th century Italian engineer and agronomist Pietro Germi (1914–1974), Italian actor, screenwriter and director Pietro Lanza di Scalea (1863–1938), Italian noble and politician Pietro Locatelli (1695–1764), Italian Baroque composer and violinist Pietro Lombardi (architect) (1894–1984), Italian architect Pietro Lombardi (wrestler) (1922–2011), Italian wrestler Pietro Lombardi (singer) (born 1992), German singer Pietro Loredan (1372–1438), Venetian nobleman and military commander on sea and land Pietro Antonio Lorenzoni (1721–1782), Austrian painter Pietro Magni (sculptor) (1817–1877), Italian sculptor Pietro Magni (engineer) (1898–1988), Italian aeronautical engineer Pietro Magni (footballer) (1919–1992), Italian footballer and football manager Pietro Melchiorre Ferrari (1735–1787), painter from Parma Pietro Mennea (1952–2013), Italian sprinter and politician Pietro Metastasio , pseudonym of Pietro Antonio Domenico Trapassi (1698–1782), Italian poet and librettist N–Z [ edit ] Pietro Negroni (c. 1505–1565), Italian painter of
667-717: The main character in the PopoloCrois game series See also [ edit ] San Pietro (disambiguation) Peter (given name) Pietra (disambiguation) [REDACTED] Name list This page or section lists people that share the same given name . If an internal link led you here, you may wish to change that link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Pietro&oldid=1251832888 " Categories : Given names Italian masculine given names Masculine given names Hidden categories: Articles with short description Short description
696-514: The male sex is the Mars symbol ♂, a circle with an arrow pointing northeast . The Unicode code-point is: The symbol is identical to the planetary symbol of Mars . It was first used to denote sex by Carl Linnaeus in 1751. The symbol is sometimes seen as a stylized representation of the shield and spear of the Roman god Mars . According to William T. Stearn , however, this derivation is "fanciful" and all
725-494: The mating type is called a gamete. The male gamete is smaller than the female gamete, and usually mobile. Anisogamy remains poorly understood, as there is no fossil record of its emergence. Numerous theories exist as to why anisogamy emerged. Many share a common thread, in that larger female gametes are more likely to survive, and that smaller male gametes are more likely to find other gametes because they can travel faster. Current models often fail to account for why isogamy remains in
754-560: The mechanisms by which two gametes get together as required for sexual reproduction . Accordingly, sex is defined across species by the type of gametes produced (i.e.: spermatozoa vs. ova) and differences between males and females in one lineage are not always predictive of differences in another. Male/female dimorphism between organisms or reproductive organs of different sexes is not limited to animals; male gametes are produced by chytrids , diatoms and land plants , among others. In land plants, female and male designate not only
783-572: The production of sperm. For example, in some insects and fish, the male is smaller than the female. In seed plants, the sporophyte sex organ of a single organism includes both the male and female parts. In mammals, including humans, males are typically larger than females. This is often attributed to the need for male mammals to be physically stronger and more competitive in order to win mating opportunities. In humans specifically, males have more body hair and muscle mass than females. Birds often exhibit colorful plumage that attracts females. This
812-566: The years, Germi shifted away from social drama towards satirical comedies, but retained his loved element of the Sicilian people. In the 1960s, Germi received worldwide success with the films Divorce Italian Style , Seduced and Abandoned , and The Birds, the Bees and the Italians . He was nominated for Academy Awards in both directing and writing for Divorce Italian Style , and, subsequently, won in
841-482: Was an Italian film director, screenwriter, and actor, noted for his development of the neorealist and commedia all'italiana genres. His 1961 film Divorce Italian Style earned him a Best Original Screenplay Oscar and a Best Director nomination at the 35th Academy Awards . Seven of his films competed at the Cannes Film Festival , with his 1966 comedy The Birds, the Bees and the Italians winning
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