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1. Compute the mean energy per nuclear disintegration, A, for 99mTC if 2.0 x 109 Bq of this isotope is injected into a patient. Assume that one-half of the administered dose is taken up by the thyroid and that the removal kinetics follow first-order exponential form with a biological half-life of 4 h. What is the dose to the thyroid? Assume for purposes of this problem that the specific absorbed fraction is 0.5 and the thyroid weighs 80 g. Express the dose in gray.
who proposed trinomial system of classification? in ALLEN modules ans is Huxley & Stricklandt but in AAKASH its given Lamarck so what is correct?
Q. What is the adnexal organ of the digestive system in which bile is stored? How does this organ react to the ingestion of fat rich food? Bile is concentrated and stored in th
What happens to traits in a species that is evolving over time?
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Who is the founder of theory survival of the fittest ?
Define Nitrogen Estimation - Kjeldahl's Method? Nitrogen in the protein is estimated by a method referred to as Kjeldahl's method. Although over a period of time many other met
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Osmoregulation in Animals Osmoregulation associates to the regulation of water and ionic content of the body of non-chordate metazoans. These might be osmoconformers / osmoreg
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