What's the difference between extinct and imperiled?
Extinct
Definition:
(a.) Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano.
(a.) Without a survivor; without force; dead; as, a family becomes extinct; an extinct feud or law.
(v. t.) To cause to be extinct.
Example Sentences:
(1) The stages of mourning involve cognitive learning of the reality of the loss; behaviours associated with mourning, such as searching, embody unlearning by extinction; finally, physiological concomitants of grief may influence unlearning by direct effects on neurotransmitters or neurohormones, such as cortisol, ACTH, or norepinephrine.
(2) The effect upon ethanol responding was found not to resemble a pattern of extinction, but rather was best described as a general overall reduction in responding.
(3) In a recent study, Orr and Lanzetta (1984) showed that the excitatory properties of fear facial expressions previously described (Lanzetta & Orr, 1981; Orr & Lanzetta, 1980) do not depend on associative mechanisms; even in the absence of reinforcement, fear faces intensify the emotional reaction to a previously conditioned stimulus and disrupt extinction of an acquired fear response.
(4) We conclude that the procedure used in this study is a non-intrusive intervention that is an extension of the current literature pertaining to sensory extinction.
(5) After 40 programmed minutes of acquisition and 12 min of maintenance, without notice, both schedules changed to extinction for 28 min.
(6) This differential absorbance is linear with increasing concentrations of Na2MoO4 and was used to calculate the molar extinction coefficient of molybdochelin at 425 nm (epsilon similar to 6,200).
(7) However, during massed testing, all subjects trained with response contingent CS termination showed an overall extinction influence, which was most pronounced in the medial subgroup, although the laterals showed frequency control as well.
(8) When reinforcement for competing behavior was withdrawn, however, rats resumed their original behavior and there were no overall savings in total responses to extinction.
(9) The relative amount of the crystals was measured in both amoeba strains on the basis of the integral extinction value.
(10) Chronic extinction of chain closed conditioned reflex in intact rabbits took five to six days.
(11) The amounts of phosphatidylcholine and sphingomyelin could be determined by high-performance liquid chromatography and ultraviolet absorption if the apparent extinction coefficient of the material analyzed was established.
(12) In a number of neurones the extinction of reflexes either does not change the reaction to acetylcholine, or enhances it.
(13) In Experiment 3, following an unsignaled reinforcement delay, groups receiving either no event or signaled food in the context responded faster in extinction than groups receiving no context exposure or unsignaled food.
(14) The optical extinction decreases as the red cell agglutinates grow, giving a parametric estimate of the haemagglutination rate.
(15) By calculating for DNA standard solutions the value of the ratio between the extinction at 665 nm after 15 min to the extinction of 600 nm after 2 min of the orcinol reaction it is possible to increase specifiaty of the orcinol method for determination of the RNA content.
(16) To lose the Sundarbans would be to move a step closer to the extinction of these majestic animals," said ZSL tiger expert Sarah Christie.
(17) Values obtained for thebuoyant density, isoelectric point, and extinction coefficient differed minimally; major differences were observed in the molecular weight and the characterisitc width of cylinders formed by in vitro-assembled T-layer of the wild-type and variant.
(18) The CS+ preference persisted for several weeks during extinction tests when both the CS+ and CS- were paired with IG water or with no infusions.
(19) The extinction coefficient at 550 nm for the oxidized enzyme is about 5300 (M subunit)-1 X cm-1.
(20) On this planet, extinction is the norm – of the 4 billion species ever thought to have evolved, 99% have become extinct.
Imperiled
Definition:
(imp. & p. p.) of Imperil
Example Sentences:
(1) Many of the plays we produced needed time for research and development in workshop mode – this investment, the provision of time for the development and rehearsal of plays for which I have campaigned throughout my career, was a cornerstone of our work, and could not be stripped away without imperilling the creation of plays themselves.
(2) Played out against the backdrop of the 1979 hostage crisis, Argo spins the account of a joint Hollywood-CIA mission to spring six imperiled Americans from revolutionary Iran, using a fake movie production as a decoy.
(3) We need to persuade ministers that our great art galleries, from Manchester to Margate, our flourishing TV industry, our growing reputation for fashion, and all the many other achievements are imperilled if we do not invest in the arts and cultural education.
(4) Attempts to salvage patients are indicated when treatment has failed to arrest disease, when life expectancy is threatened, or when return to normal activity is imperiled.
(5) Carney said in response: “The issue would be imperiling potentially the achievement of price stability.
(6) But with Republicans in control of both chambers of Congress and with a wide-open presidential contest looming, the 20-week abortion ban could soon overcome the obstacles that have thus far imperiled its enactment at the federal level.
(7) Claude Turmes, the Green MEP who was the European parliament draftsman for the original renewable energy directive, warned that the UK government's stance would imperil efforts to tackle climate change.
(8) Unions can disintegrate because mistakes are made, and I would like to think the Conservatives are not going make mistakes that imperil the future of the union.
(9) The success of the D-day landings was imperilled by the marital problems of the double agent at the heart of Britain’s elaborate wartime deception operations, newly declassified MI5 files have shown.
(10) The situation demands carefully crafted solutions since it involves millions of livelihoods that are already imperilled by the dwindling of the bay’s resources.
(11) Never before had he found his holy body, under the protection of dozens of professional security guards, so imperilled.
(12) Dealing with Islamic State, Russia and al-Qaida, and maintaining Britain’s status as a country that is true to its word and punches above its weight - all of this is imperilled unless Labour and the Conservatives have a real discussion about defence spending and the foreign policy challenges the next government will face.
(13) I’d rather do it right than do it fast but obviously we can’t wait forever.” A growing list of defections had imperiled the prospect of a vote to even begin debate on the Senate legislation, which would repeal and replace major components of the healthcare law signed by Barack Obama.
(14) Enddiastolic flow reductions, based on an increased placental resistance, are provable relatively early, whereas a beginning centralization of the fetal circulation is only recognizable in a closer temporal connection with the fetal imperilment on account of pathological flowprofiles.
(15) Their comments on my research do not imperil my interpretation of it or challenge my criticism that classification judgments of acoustically analogous speech and nonsense signals do not permit interpretation, by themselves, in terms of underlying auditory-system mechanisms.
(16) Malcolm Turnbull has weighed into the case of a Brisbane hospital that is refusing to discharge a baby facing removal to Nauru, saying the government would not “imperil the health or security of any individual”, as Australia came under further international pressure over its asylum policies.
(17) Our highest-ranking soldier, Field Marshal Lord Bramall – no starry-eyed Europhile – warns that if we left, “ a broken and demoralised Europe just across the Channel ” would imperil our security.
(18) Though the protests were sparked by the electoral reform proposals, they were fuelled by concern that the existing freedoms and rights enjoyed by residents under the “one country, two systems” framework are imperilled by Beijing’s tightening grip, and that migration and closer integration with the mainland are wearing away its culture.
(19) After the successful dissection of AcP's the patients lost the feeling of illness and do not feel being imperilled.
(20) 's study imperil both their results and their conclusions regarding developmental stuttering.