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Dictionary » E » Extinction ExtinctionExtinction 1. (Science: ecology) The death of an entire species. 2. (Science: psychology) The procedure of presenting the conditioned stimulus without reinforcement to an organism previously conditioned. It refers also to the diminution of a conditioned response resulting from this procedure. ![]()
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Results from our forumRe: What is the most poisonous snake in da world?... is the most poisonous snake in the world. Only 2mg of its venom can kill a human. it can attack from 4-6 feet. Though now it is on the verge of extinction.
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Re: Question on Predators/ NS... very good, and natural selection is evident. But you have to have new information in the genome, and NS is taking away from the gene pool through extinction. Am I missing something here?
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Re: Inter species breeding with fertile offspring... fact is natural selection was falsified All you have to do is watch two male whales sparring for breeding rights and you see NS. If you see extinction you in some cases see NS. If you death because of deleterious mutations, or disappearance of a harmful or useless trait then you see NS. ...
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Any SOLID arguments against evolution?... multiply until they run out of food then maybe ate each other until there was more food available. Something happen then they were driven to extinction then something else took over. Most of the crust is silicon and oxygen, with of course all the other elements and compounds. [/i] WHERE ARE ...
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Optical density Q... 0.7 when measured at 400nm. in a 1cm glass cuvette. The solution had been prepared by dissolving 35mg of X in 50 ml of water. What is the molar extinction coefficient of X at 400nm? (mol. wt. of X is 450) (20% of the marks) (ii) Measurements of lactate dehydrogenase (LDH) activity were carried ...
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