61 relations: Alt code, Anima and animus, Anisogamy, Asexual reproduction, Breast, Chromosome, Chytridiomycota, Class (biology), Dakini, Diatom, Egg cell, Evolution, Femininity, Gamete, Gender, Genetics, Gestation, Girl, Goby, Guppy, Haplodiploidy, Hermaphrodite, Heterogamy, Human, Hymenoptera, Intersex, Isogamy, Lactation, Lady, Lineage (evolution), Male, Mammal, Mammary gland, Mating type, Monotreme, Motility, Motion (physics), Oogamy, Oomycete, Organism, Parthenogenesis, Plant, Plant reproductive morphology, Platypus, Ploidy, Reproduction, Reproductive system, Sex, Sexual reproduction, Shark, ..., Spermatozoon, Sporophyte, Unicode, Woman, Womyn, X chromosome, X-inactivation, XY sex-determination system, Y chromosome, ZW sex-determination system, Zygosity. Expand index (11 more) » « Shrink index
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.
The anima and animus are described in Carl Jung's school of analytical psychology as part of his theory of the collective unconscious.
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.
Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.
The breast is one of two prominences located on the upper ventral region of the torso of primates.
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.
Chytridiomycota is a division of zoosporic organisms in the kingdom Fungi, informally known as chytrids.
In biological classification, class (classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank.
A ḍākinī (хандарма;; alternatively) is a type of spirit in Vajrayana Buddhism.
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.
The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.
Evolution is change in the heritable characteristics of biological populations over successive generations.
Femininity (also called girlishness, womanliness or womanhood) is a set of attributes, behaviors, and roles generally associated with girls and women.
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.
Gender is the range of characteristics pertaining to, and differentiating between, masculinity and femininity.
Genetics is the study of genes, genetic variation, and heredity in living organisms.
Gestation is the carrying of an embryo or fetus inside viviparous animals.
A girl is a young female human, usually a child or an adolescent.
Gobies are fishes of the family Gobiidae, one of the largest fish families comprising more than 2,000 species in more than 200 genera.
The guppy (Poecilia reticulata), also known as millionfish and rainbow fish, is one of the world's most widely distributed tropical fish, and one of the most popular freshwater aquarium fish species.
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.
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.
The production of two type of gametes is called heterogamy.
Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.
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".
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.
Lactation describes the secretion of milk from the mammary glands and the period of time that a mother lactates to feed her young.
The word lady is a term of respect for a woman, the equivalent of gentleman.
An evolutionary lineage is a temporal series of organisms, populations, cells, or genes connected by a continuous line of descent from ancestor to descendent.
A male (♂) organism is the physiological sex that produces sperm.
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.
A mammary gland is an exocrine gland in mammals that produces milk to feed young offspring.
Mating types are molecular mechanisms that regulate compatibility in sexually reproducing eukaryotes.
Monotremes are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).
Motility is the ability of an organism to move independently, using metabolic energy.
In physics, motion is a change in position of an object over time.
Oogamy is the familiar form of sexual reproduction.
Oomycota or oomycetes form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms.
In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.
Parthenogenesis (from the Greek label + label) is a natural form of asexual reproduction in which growth and development of embryos occur without fertilization.
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
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.
The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.
Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents".
The reproductive system or genital system is a system of sex organs within an organism which work together for the purpose of sexual reproduction.
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.
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.
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.
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.
A sporophyte is the diploid multicellular stage in the life cycle of a plant or alga.
Unicode is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems.
A woman is an adult female human being.
The word womyn is one of several alternative spellings of the English word women used by some feminists.
The X chromosome is one of the two sex-determining chromosomes (allosomes) in many organisms, including mammals (the other is the Y chromosome), and is found in both males and females.
X-inactivation (also called lyonization) is a process by which one of the copies of the X chromosome present in female mammals is inactivated.
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).
The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals.
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.
Zygosity is the degree of similarity of the alleles for a trait in an organism.