The nettle passes though two different body forms during its life cycle. The most familiar form is the medusa, while the smaller form is the larval stage. Jellyfish are either male or female. A few steps are required in order for a jellyfish to reproduce. First, the reproductive organs in the male (the gonads) develop in the lining of the gut. Second, the male releases sperm through its mouth column. Third, the sperm has to swim into the mouth of the ...

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Sea nettle, Sea nettle - Life cycle and reproduction, Sea nettle - Habitat, Sea nettle - Feeding Habits, Sea nettle - Defense Mechanisms, Sea nettle - Sting Treatment

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Jellyfish, Jellyfish - Life cycle and reproduction, Jellyfish - Defense and feeding mechanisms, Jellyfish - Body systems, Jellyfish - Blooms and grouping, Jellyfish - Jellyfish in captivity, Jellyfish - Cuisine, Jellyfish - Treatment of stings

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Reproduction is seasonal. When males produce an excess of "male jelly" they become aggressive and violent. A hitherto hidden fin on their heads unfolds. The male engages in courtship displays on the beach to attract females. Love is unknown; the female chooses a male mate based on the strength of his displays. The actual reproductive act is a large, public group affair that is known as the "mating frenzy." After pairing, couples enter the water where the male releases his jelly into the cloacal vents of the female. It is portrayed in the "Wh ...

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Decapodian, Decapodian - Biology and anatomy, Decapodian - Reproduction and life cycle, Decapodian - Claw plagh

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See text Nettle (Urtica) is a genus of flowering plants in the family Urticaceae, mostly perennial herbs but some are annual and a few are shrubby. The most prominent member of the genus is the Stinging nettle Urtica dioica, native to Europe, Asia, and North America. The genus also contains a number of other species with similar properties, listed below. However, a large number of species names that will be encountered in this genus in the older literature (about 100 species have been described) are now recognised as synonyms of Urtica dioica. Some of t ...

Including:

Nettle - Uses Nettle - Safety

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Slugs are hermaphroditic: having both female and male reproductive organs. Once a slug has located a mate they encircle each other and sperm is exchanged through their protruding genitalia. A few days later hundreds of eggs are laid in holes in the ground. Although some species hibernate over the winter in temperate climates, in most species the adults die in the autumn. A commonly seen practice among many slugs is apophallation, when one or both of the slugs chew off the other's penis. The penis of these species is curled like a cork ...

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Slug, Slug - Mucus, Slug - Reproduction and life cycle, Slug - Predation defense and pest control

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A life cycle is a period involving one generation of an organism, whether through asexual reproduction or sexual reproduction. In regard to its ploidy, there are three types of cycles: haplontic life cycle diplontic life cycle diplobiontic life cycle (also referred to as diplohaplontic, haplodiplontic, or dibiontic life cycle) These three types of cycles feature alternating haploid and diploid phases (n and 2n). Th ...

Including:

Biological life cycle - Haplontic life cycle Biological life cycle - Diplontic life cycle Biological life cycle - Diplobiontic life cycle

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Female house mice have an estrous cycle that is 4-6 days long, with estrus itself lasting less than a day. If several females are held together under crowded conditions, they will often not have an estrus at all; if they are then exposed to male urine, they will become estrous after 72 hours. Male house mice court females by emitting characteristic ultrasonic calls in the 30kHz - 110kHz range. The calls are most frequent during courtship when the male is sniffing and following the female. However, the calls continue after mating has b ...

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House mouse, House mouse - Physical descriptions, House mouse - Behavior, House mouse - Senses and communication, House mouse - Life cycle and reproduction, House mouse - Mice and humans, House mouse - Subspecies, House mouse - Special populations, House mouse - Laboratory mice, House mouse - Genome, House mouse - Mutant and transgenic strains

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Sea Otters may be either solitary or in groups called rafts when resting and cling to kelp so they do not float away while they are taking a nap. Females avoid males outside of breeding periods. Conflicting data regarding home range and migration of Sea Otters suggests their movements are dependent on availability of resources. Home ranges may be as large as 5.4 square kilometres, with most animals travelling foun ...

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Sea Otter, Sea Otter - Physical description, Sea Otter - Habitat and diet, Sea Otter - Behavior and reproduction, Sea Otter - The Great Hunt

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Bonnie Nettles was co-leader of a group with Herff Applewhite, (Herff never went by the name "Marshall" according to friends and family) and became the leader of what turned into the Heaven's Gate cult after Nettles death. Bonnie Nettles, a nurse, met Applewhite while visiting a patient at a Houston, Texas hospital (in the psychiatric ward) in the early 1970s. She met him again at a threatre where her daughter worked and her son took drama classes. Nettles did astrological charts for some of the mothers there when she ra ...

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A cycle (Latin "cyclus," from Greek "kuklos" meaning circle) is anything round, in the physical sense (e.g. a bicycle) or in a temporal sense (e.g. the cycle of the seasons). Cyclic or cyclical are the adjective forms. Pages about cycles include: Cycle studies for interdisciplinary cycle research. See also Foundation for the Study of Cycles and list of cycles Cycle - Sports. Hitting for the cycle in Baseball The Paris-Roubaix Cycle Race. Including:

Cycle - Sports Cycle - Arts Cycle - History Cycle - Culture Cycle - Science
Cycle - Astronomy Cycle - Biology Cycle - Chemistry Cycle - Physics Cycle - Geology Cycle - Meteorology Cycle - Engineering Cycle - Mathematics Cycle - Computer science Cycle - Military science Cycle - Political science
Cycle - Business
Cycle - Finance Cycle - Telecommunication
Cycle - Crime

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Biological reproduction is the biological process by which new individual organisms are produced. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction by an antecedent. The known methods of reproduction are broadly grouped into two main types: sexual and asexual reproduction. In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of a bacterial cell into two daughter cells is an example of as ...

Including:

Biological reproduction - Asexual reproduction Biological reproduction - Sexual reproduction
Biological reproduction - Mitosis and Meiosis
Biological reproduction - Reproductive strategies Biological reproduction - Asexual vs. sexual reproduction
Biological reproduction - The Red Queen hypothesis
Biological reproduction - Life without reproduction Biological reproduction - Mechanical reproduction

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The C2C was developed by Sustrans and part of the National Cycle Network (NCN) in partnership with various Local Authorities, Groundwork West Cumbria, North Pennines Tourism Partnership, Forest Enterprise and the Lake District National Park amongst others. The route was opened in 1994 running from Whitehaven on the west coast of Cumbria to the North East coast at Sunderland. In 2005 a complementary route was opened further to the south. This, titled the Walney to Wear route (W2W), is designed to be slightly tougher and longer. It runs from Walney Island in south west Cumbria to Su ...

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Sea to Sea Cycle Route, Sea to Sea Cycle Route - History, Sea to Sea Cycle Route - Route

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The menstrual cycle is the set of recurring physiological changes in a female's body that are under the control of the reproductive hormone system and necessary for reproduction. In women, menstrual cycles occur typically on a monthly basis between puberty and menopause. Besides humans, only other great apes exhibit menstrual cycles, in contrast to the estrus cycle of most mammalian species. During the menstrual cycle, the sexually mature female body releases one egg (or occasionally two, which might result in dizygotic, or non ...

Including:

Menstrual cycle - The normal menstrual cycle in humans
Menstrual cycle - Menstruation Menstrual cycle - Follicular phase Menstrual cycle - Ovulation Menstrual cycle - Luteal phase
Menstrual cycle - Menstrual symptoms Menstrual cycle - The fertile window Menstrual cycle - Hormonal control Menstrual cycle - Hidden ovulation Menstrual cycle - The ovary as an egg-bank Menstrual cycle - The anovulatory menstrual cycle Menstrual cycle - Cycle abnormalities
Menstrual cycle - Frequency Menstrual cycle - Flow Menstrual cycle - Duration
Menstrual cycle - The birth control pill Menstrual cycle - Etymology and the lunar month Menstrual cycle - Menstrual products
Menstrual cycle - Debate
Menstrual cycle - Culture and menstruation
Menstrual cycle - Mysticism Menstrual cycle - Religion
Menstrual cycle - Menstruation in other mammals Menstrual cycle - Notes

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Cycling shorts are shorts designed for cycling. Historically cycling shorts have been made of black wool and had a leather chamois. Most modern cycling shorts are made of lycra and contain a synthetic chamois in the seat and crotch area. They are usually worn without underwear. The function of the chamois is to absorb moisture, thus preventing chaffing and rashes, thereby increasing a cyclist's comfort and endurance. ...

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The existence of life without reproduction is the subject of some speculation. The biological study of how the origin of life led from non-reproducing elements to reproducing organisms is called abiogenesis. Whether or not there were several independent abiogenetic events, biologists believe that the last common ancestor to all present life on earth lived about 3.5 billion years ago. Today, some scientists have speculated about the possibility of creating life non-reproductively in the laboratory. One group of scientists has succeeded ...

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Biological reproduction, Biological reproduction - Asexual reproduction, Biological reproduction - Sexual reproduction, Biological reproduction - Mitosis and Meiosis, Biological reproduction - Reproductive strategies, Biological reproduction - Asexual vs. sexual reproduction, Biological reproduction - The Red Queen hypothesis, Biological reproduction - Life without reproduction, Biological reproduction - Mechanical reproduction

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The existence of life without reproduction is the subject of some speculation. The biological study of how the origin of life led from non-reproducing elements to reproducing organisms is called abiogenesis. Whether or not there were several independent abiogenetic events, biologists believe that the last common ancestor to all present life on earth lived about 3.5 billion years ago. Today, some scientists have speculated about the possibility of creating life non-reproductively in the laboratory. One group of scientists has succeeded ...

See also:

Biological reproduction, Biological reproduction - Asexual reproduction, Biological reproduction - Sexual reproduction, Biological reproduction - Mitosis and Meiosis, Biological reproduction - Reproductive strategies, Biological reproduction - Asexual vs. sexual reproduction, Biological reproduction - The Red Queen hypothesis, Biological reproduction - Life without reproduction

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Nettle stems are a popular raw material used in small-scale papermaking. The tops of growing nettles are a popular cooked green in many areas, and are exceptionally high in protein. Some cooks throw away a first water to get rid of the formic acid, while others retain the water and cook the nettles straight. Nettle tops are sold in some farmers' markets and natural food stores. Nettle is believed to be a galactagogue and a clinical trial has shown that the juice is diuretic in patients ...

See also:

Nettle, Nettle - Uses, Nettle - Safety

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The life cycle of frogs contains many stages. Typically, the male frogs of a species will assemble at a still water source. They will then call, collectively becoming a chorus of frogs. The call is unique to the species, and will attract females of that species. Some species have satellite males who do not call but intercept females approaching one of the calling males. The male and female frog, will then undergo amplexus. This involves the male mounting the female. The female then releases her eggs, which the male frog covers with a ...

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Frog, Frog - Characteristics, Frog - Call, Frog - Poison, Frog - Distribution and status, Frog - Life cycle, Frog - Diversity of reproductive behaviours, Frog - Diet and Predators, Frog - Taxonomy, Frog - Frogs in popular culture

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In gametic meiosis, instead of immediately dividing meiotically to produce haploid cells, the zygote divides mitotically to produce a multicellular diploid individual or a group of more diploid cells. Cells from the diploid individuals then undergo meiosis to produce gametes. The haploid gametes do not divide mitotically, however. Without growing larger, the gametes would fuse and produce the diploid zygote with gametes of the opposite type. In the whole cycle, gametes are the ...

See also:

Biological life cycle, Biological life cycle - Haplontic life cycle, Biological life cycle - Diplontic life cycle, Biological life cycle - Diplobiontic life cycle

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A zygotic meiosis is a meiosis of a zygote immediately after karyogamy, which is the fusion of two cell nuclei. This way, the organism ends its diploid phase and produces several haploid cells. These cells divide mitotically to form either larger, multicellular individuals, or more haploid cells. Two opposite types of gametes (e.g., male and female) from these individuals or cells fuse to become a zygote. In the whole cycle, zygotes are th ...

See also:

Biological life cycle, Biological life cycle - Haplontic life cycle, Biological life cycle - Diplontic life cycle, Biological life cycle - Diplobiontic life cycle

Read more here: » Biological life cycle: Encyclopedia II - Biological life cycle - Haplontic life cycle