define extinction
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Extinction In biology and ecology, extinction is the end of an organism or of a group of organisms (taxon), normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
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Extinction Extinction is the termination of evolutionary lineage. The most common extinction event is the loss of a species. There are many reasons why a species might die out. Human intervention (either directly or indirectly) has become the leading cause of species extinction (possibly for the last fifteen thousand years).
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- The Holocene extinction, sometimes called the Sixth Extinction, is a name proposed to describe the currently ongoing extinction event of species during the present Holocene epoch (since around 10,000 BCE) mainly due to human activity.
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Extinction (learning) Extinction in classical conditioning Edit. During the acquisition phase of Classical conditioning, a previously neutral stimulus (CS) is repeatedly paired with a naturally aversive stimulus (UCS) and the production of a conditioned response (CR) is taken as evidence of learning. Extinction in psychology.
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Spontaneous Recovery A third use of the term extinction is as a process or intervening variable that is intended to provide an explanation, as when one says, “When we arranged for the stimulus to be presented alone, the behavior deteriorated because of extinction.” Normally, it is this process that is of interest.
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extinction Full Definition of EXTINCTION. 1. : the act of making extinct or causing to be extinguished. 2. 3. : the process of eliminating or reducing a conditioned response by not reinforcing it. See extinction defined for English-language learners. See extinction defined for kids.
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- Learn more about the role extinction plays in conditioning. Extinction occurs when the occurrences of a conditioned response decrease or disappear. Learn more about the role extinction plays in conditioning.
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- Introduction. Endangered means to be under threat or near extinction. When a species/animal is endangered it means that they are disappearing fast or have a very small population-not large enough to survive. Extinction means the end of existence for a species.ndangered means to be under threat or near extinction. When a species/animal is endangered it means that they are disappearing fast or have a very small population-not large enough to survive. 1  Introduction. 2  Endangered Animals. 3  Beginning of Life. 4  Extinction is Forever! 5  Habitat destruction.
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endangered endangered - (of flora or fauna) in imminent danger of extinction; an endangered species plant life, flora, plant - (botany) a living organism lacking the power of locomotion vulnerable - susceptible to attack; a vulnerable bridge
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- Extinction is a natural event  perhaps 95% of all the species that have ever lived have gone extinct. By late 1700s, as more fossil species were unearthed, catastrophism became the dominant explanation.
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Definitions &Translations Definitions for interstellar extinction. Here are all the possible meanings and translations of the word interstellar extinction. Wiktionary(0.00 / 0 votes)Rate this definition: interstellar extinction(Noun) the dimming of light from the stars due to absorption and scattering from dust in the interstellar medium.
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Measles outbreak in California: What you need to know Federal recommendations call for the first dose of the measles vaccination, known as MMR, to be given at 12 to 15 months of age, though doctors might vaccinate babies as young as 6 months under certain circumstances, such as if they are traveling internationally.
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Extinction Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
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Translations for endangered species endangered species (n. sing. & pl.) A species of plant or animal that has declined in numbers to a point where further irreversible decline and extinction has a significant chance. Lists of endangered species are maintained by government agencies, and in many cases the killing of such species or destruction of their habitat is prohibited by law.
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Extinction Extinction, in biology, the dying out or termination of a species. Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).
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What is extinction in psychology? Extinction is a basic phenomenon (event, incident) of learning that occurs when a previously conditioned response decreases in frequency and eventually disappears.
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- 2 BIOS Converter User Guide for X79 series Updating the BIOS You can use the following methods to update your motherboard’s BIOS: USB BIOS Flashback, EZ Flash 2, and ASUS Update. After updating your motherboard’s BIOS with the BIOS converter from .ROM to .CAP, you cannot reverse it back to its previous structure.ey in your motherboard’s name to the Search field, and press Enter .3. Click Download tab, select an OS, and click BIOS Utilities. You can also click to download the converter. 4. Download the BIOS converter and save it in the root directory of your USB storage device.
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Extinction The Extinction insignia. Extinction is a game mode featured in Call of Duty: Ghosts. The game mode features up to four players fighting Cryptids (ancient creatures that have existed before the dinosaurs) in outbreak sites where the Cryptids have overrun the area.
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extinction noun. 1  a. 2  The fact of being extinct or the process of becoming extinct: the extinction of the passenger pigeon; languages that are in danger of extinction. 3  Psychology A reduction or a loss in the strength or rate of a conditioned response when the unconditioned stimulus or reinforcement is withheld.
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annihilation 2. annihilation-total destruction; bomb tests resulted in the annihilation of the atoll. disintegration. extermination, extinction-complete annihilation; they think a meteor cause the extinction of the dinosaurs. demolition, wipeout, destruction-an event (or the result of an event) that completely destroys something.
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- The calculation of flight time is based on the straight line flight distance from Manchester, United Kingdom to Antalya, Turkey (as the crow flies), which is about 1,945 miles or 3 130 kilometers. Your trip begins in Manchester, United Kingdom. It ends in Antalya, Turkey.
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mass extinction Scientists define a mass extinction as a period of less than two million years in which at least 75 percent of species go extinct. The Medean world is one out of balance, where over competition leads to mass extinction.
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- Full Definition of EXTINCTION. 1. : the act of making extinct or causing to be extinguished. 2. 3. : the process of eliminating or reducing a conditioned response by not reinforcing it. See extinction defined for English-language learners. See extinction defined for kids. ADVERTISEMENT.
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Extinction event The Caribbean monk seal was officially declared extinct in 2008. The Holocene extinction, sometimes called the Sixth Extinction, is a name proposed to describe the currently ongoing extinction event of species during the present Holocene epoch (since around 10,000 BCE) mainly due to human activity.
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extinction Extinction is when all members of a particular group die. Most often, we use it to discuss animal species. Many fear that the tiger is headed for extinction because of development and hunting. People are still trying to figure out what caused the extinction of the dinosaurs: many think it was because of an asteroid. When people cut down rain forests, it can lead to the extinction of many species. Although extinction can be natural or unintended, the word can also mean forced, planned killing.
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Language Death By Richard Nordquist. Definition. A linguistic term for the end or extinction of a language. Also called language extinction. Distinctions are commonly drawn between an endangered language (one with few or no children learning the language) and an extinct language (one in which the last native speaker has died). See Examples and Observations below.