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83 relations: Alchemical symbol, Alligator, Alt code, Alternation of generations, Amphiprioninae, Animal, Anisogamy, Ant, Arthropod, Bacteria, Bee, Bird, Boy, Cardinal direction, Carl Linnaeus, Chromosome, Chytridiomycota, Convergent evolution, Cymothoa exigua, Diatom, Egg cell, Female, Fertilisation, FGF9, Flower, Gamete, Gender, Gender symbol, Genetics, Gentleman, Gonad, Haplodiploidy, Hermaphrodite, Homo sapiens, Human, Hymenoptera, Insect, Intersex, Iron, Isogamy, Lepidoptera, Lineage (evolution), Male pregnancy, Male reproductive system, Mammal, Man, Mars, Mars (mythology), Masculinity, Mating type, ..., Oogamy, Operational definition, Organism, Physiology, Planet symbols, Plant, Plant reproductive morphology, Ploidy, Plumage, Prostaglandin D2, Qatar, Reproduction, Roman mythology, Sertoli cell, Sex, Sex-determination system, Sexual dimorphism, Sexual reproduction, Snail, SOX9, Sperm, Spermatic cord, Spermatozoon, Sporophyte, Testis-determining factor, Testosterone, Unicode, United Arab Emirates, Wolbachia, Worm, XY sex-determination system, Y chromosome, ZW sex-determination system. Expand index (33 more) »
Alchemical symbol
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century.
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Alligator
An alligator is a crocodilian in the genus Alligator of the family Alligatoridae.
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Alt code
On IBM compatible personal computers, many characters not directly associated with a key can be entered using the Alt Numpad input method or Alt code: pressing and holding the ''Alt'' key while typing the number identifying the character with the keyboard's numeric keypad.
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Alternation of generations
Alternation of generations (also known as metagenesis) is the type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct sexual haploid and asexual diploid stages.
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Amphiprioninae
Clownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae.
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Animal
Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.
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Anisogamy
Anisogamy (also called heterogamy) is the form of sexual reproduction that involves the union or fusion of two gametes, which differ in size and/or form. (The related adjectives are anisogamous and anisogamic). The smaller gamete is considered to be male (sperm cell), whereas the larger gamete is regarded as female (egg cell). There are several types of anisogamy. Both gametes may be flagellated and therefore motile. Alternatively, both of the gametes may be non-flagellated. The latter situation occurs in some algae and plants. In the red alga Polysiphonia, non-motile eggs are fertilized by non-motile sperm. In flowering plants, the gametes are non-motile cells within gametophytes. The form of anisogamy that occurs in animals, including humans, is oogamy, where a large, non-motile egg (ovum) is fertilized by a small, motile sperm (spermatozoon). The egg is optimized for longevity, whereas the small sperm is optimized for motility and speed. The size and resources of the egg cell allow for the production of pheromones, which attract the swimming sperm cells.
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Ant
Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera.
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Arthropod
An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages.
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Bacteria
Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.
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Bee
Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax.
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Bird
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
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Boy
A boy is a young male human, usually a child or adolescent.
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Cardinal direction
The four cardinal directions or cardinal points are the directions north, east, south, and west, commonly denoted by their initials N, E, S, and W. East and west are at right angles to north and south, with east being in the clockwise direction of rotation from north and west being directly opposite east.
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Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after his ennoblement as Carl von LinnéBlunt (2004), p. 171.
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Chromosome
A chromosome (from Ancient Greek: χρωμόσωμα, chromosoma, chroma means colour, soma means body) is a DNA molecule with part or all of the genetic material (genome) of an organism.
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Chytridiomycota
Chytridiomycota is a division of zoosporic organisms in the kingdom Fungi, informally known as chytrids.
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Convergent evolution
Convergent evolution is the independent evolution of similar features in species of different lineages.
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Cymothoa exigua
Cymothoa exigua, or the tongue-eating louse, is a parasitic isopod of the family Cymothoidae.
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Diatom
Diatoms (diá-tom-os "cut in half", from diá, "through" or "apart"; and the root of tém-n-ō, "I cut".) are a major group of microorganisms found in the oceans, waterways and soils of the world.
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Egg cell
The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.
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Female
Female (♀) is the sex of an organism, or a part of an organism, that produces non-mobile ova (egg cells).
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Fertilisation
Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, conception, fecundation, syngamy and impregnation, is the fusion of gametes to initiate the development of a new individual organism.
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FGF9
Glia-activating factor is a protein that in humans is encoded by the FGF9 gene.
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Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms).
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Gamete
A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.
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Gender
Gender is the range of characteristics pertaining to, and differentiating between, masculinity and femininity.
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Gender symbol
A gender symbol is a pictogram or glyph used to represent either biological sex or sociological gender (a terminological distinction originating in 1950s sociology) in either biology, medicine, genealogy or selective breeding, or in sociology, gender politics, LGBT subculture and identity politics.
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Genetics
Genetics is the study of genes, genetic variation, and heredity in living organisms.
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Gentleman
In modern parlance, a gentleman (from gentle + man, translating the Old French gentilz hom) is any man of good, courteous conduct.
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Gonad
A gonad or sex gland or reproductive gland is a mixed gland that produces the gametes (sex cells) and sex hormones of an organism.
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Haplodiploidy
Haplodiploidy is a sex-determination system in which males develop from unfertilized eggs and are haploid, and females develop from fertilized eggs and are diploid.
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Hermaphrodite
In biology, a hermaphrodite is an organism that has complete or partial reproductive organs and produces gametes normally associated with both male and female sexes.
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Homo sapiens
Homo sapiens is the systematic name used in taxonomy (also known as binomial nomenclature) for the only extant human species.
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Human
Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.
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Hymenoptera
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.
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Insect
Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
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Intersex
Intersex people are born with any of several variations in sex characteristics including chromosomes, gonads, sex hormones, or genitals that, according to the UN Office of the High Commissioner for Human Rights, "do not fit the typical definitions for male or female bodies".
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Iron
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
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Isogamy
Isogamy is a form of sexual reproduction that involves gametes of similar morphology (similar shape and size), differing in general only in allele expression in one or more mating-type regions. Because both gametes look alike, they cannot be classified as "male" or "female". Instead, organisms undergoing isogamy are said to have different mating types, most commonly noted as "+" and "−" strains, although in some species of Basidiomycota there are more than two mating types (designated by numbers or letters). In all cases, fertilization occurs when gametes of two different mating types fuse to form a zygote.
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Lepidoptera
Lepidoptera is an order of insects that includes butterflies and moths (both are called lepidopterans).
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Lineage (evolution)
An evolutionary lineage is a temporal series of organisms, populations, cells, or genes connected by a continuous line of descent from ancestor to descendent.
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Male pregnancy
Male pregnancy is the incubation of one or more embryos or fetuses by male members of some species.
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Male reproductive system
The male reproductive system consists of a number of sex organs that play a role in the process of human reproduction.
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Mammal
Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.
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Man
A man is a male human.
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Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
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Mars (mythology)
In ancient Roman religion and myth, Mars (Mārs) was the god of war and also an agricultural guardian, a combination characteristic of early Rome.
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Masculinity
Masculinity (manhood or manliness) is a set of attributes, behaviors, and roles associated with boys and men.
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Mating type
Mating types are molecular mechanisms that regulate compatibility in sexually reproducing eukaryotes.
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Oogamy
Oogamy is the familiar form of sexual reproduction.
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Operational definition
An operational definition is the articulation of operationalization (or statement of procedures) used in defining the terms of a process (or set of validation tests) needed to determine the nature of an item or phenomenon (a variable, term, or object) and its properties such as duration, quantity, extension in space, chemical composition, etc.
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Organism
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
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Physiology
Physiology is the scientific study of normal mechanisms, and their interactions, which work within a living system.
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Planet symbols
A planet symbol (or planetary symbol) is a graphical symbol either in astrology or astronomy representing either a classical planet (including the Sun and the Moon) or one of the eight modern planets.
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Plant
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
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Plant reproductive morphology
Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction.
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Ploidy
Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.
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Plumage
Plumage ("feather") refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers.
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Prostaglandin D2
Prostaglandin D2 (or PGD2) is a prostaglandin that binds to the receptor PTGDR (DP1), as well as CRTH2 (DP2).
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Qatar
Qatar (or; قطر; local vernacular pronunciation), officially the State of Qatar (دولة قطر), is a sovereign country located in Western Asia, occupying the small Qatar Peninsula on the northeastern coast of the Arabian Peninsula.
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Reproduction
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents".
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Roman mythology
Roman mythology is the body of traditional stories pertaining to ancient Rome's legendary origins and religious system, as represented in the literature and visual arts of the Romans.
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Sertoli cell
A Sertoli cell (a kind of sustentacular cell) is a "nurse" cell of the testicles that is part of a seminiferous tubule and helps in the process of spermatogenesis, the production of sperm.
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Sex
Organisms of many species are specialized into male and female varieties, each known as a sex. Sexual reproduction involves the combining and mixing of genetic traits: specialized cells known as gametes combine to form offspring that inherit traits from each parent.
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Sex-determination system
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism.
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Sexual dimorphism
Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs.
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Sexual reproduction
Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm.
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Snail
Snail is a common name loosely applied to shelled gastropods.
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SOX9
Transcription factor SOX-9 is a protein that in humans is encoded by the SOX9 gene.
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Sperm
Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").
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Spermatic cord
The spermatic cord is the cord-like structure in males formed by the vas deferens (ductus deferens) and surrounding tissue that runs from the deep inguinal ring down to each testicle.
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Spermatozoon
A spermatozoon (pronounced, alternate spelling spermatozoön; plural spermatozoa; from σπέρμα "seed" and ζῷον "living being") is a motile sperm cell, or moving form of the haploid cell that is the male gamete.
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Sporophyte
A sporophyte is the diploid multicellular stage in the life cycle of a plant or alga.
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Testis-determining factor
Testis-determining factor (TDF), also known as sex-determining region Y (SRY) protein, is a DNA-binding protein (also known as gene-regulatory protein/transcription factor) encoded by the SRY gene that is responsible for the initiation of male sex determination in humans.
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Testosterone
Testosterone is the primary male sex hormone and an anabolic steroid.
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Unicode
Unicode is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems.
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United Arab Emirates
The United Arab Emirates (UAE; دولة الإمارات العربية المتحدة), sometimes simply called the Emirates (الإمارات), is a federal absolute monarchy sovereign state in Western Asia at the southeast end of the Arabian Peninsula on the Persian Gulf, bordering Oman to the east and Saudi Arabia to the south, as well as sharing maritime borders with Qatar to the west and Iran to the north.
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Wolbachia
Wolbachia is a genus of Gram-negative bacteria which infects arthropod species, including a high proportion of insects, but also some nematodes.
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Worm
Worms are many different distantly related animals that typically have a long cylindrical tube-like body and no limbs.
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XY sex-determination system
The XY sex-determination system is the sex-determination system found in humans, most other mammals, some insects (Drosophila), some snakes, and some plants (Ginkgo).
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Y chromosome
The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals.
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ZW sex-determination system
The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), and some reptiles, including Komodo dragons.
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Andromorphic, MALE, Maled, Maleness, Males.
References
[1] https://en.wikipedia.org/wiki/Male
