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Q1. Suppose the soil under a single story house emits1-pCi/m2S of radon gas. The house has an area of 250m2 of floor space and an average ceiling height of 2.5m and air exchange rates of 0.9 ach. Calculate the steady state concentration of radon in the huse assume the ambient concentration is negligible. Take k=7.6 x 10-3/hr
Q2. Between April 2 and May 16 of one year, 22 children in three states developed diarrhea, fever and vomiting. The children each received pet ducklings. Gram negative, Facultatively anaerobic bacteria were isolated from both the patients' and ducks' feces; bacteria were identified as serovar C. What is the genus of these bacteria?
At 4.00 rm L, an expandable vessel contains 0.864 rm mol of oxygen gas. How numerous liters of oxygen gas should be added at constant temperature and pressure if you require a total of 1.96 mol of oxygen gas in the vessel.
Where does the label show in mevalonate. A spherical ball of solid, nonporous naphthalene (as in a "moth ball") is suspended in still air; naphthalene ball slowly sublimes, releasing the naphthalene into the surrounding air by molecular diffusion lim..
At the end of the measurement period, which group will have produced the greatest volume of urine and which group the minimum? Describe your answer in details.
Case study on Salmonella Outbreaks in the U.S.
A nearsighted woman (Nn) with hazel eyes (Hh) marries the man with normal vision and hazel eyes (Hh). Their three children all have blue eyes and normal vision. What is the possibility that their next child will have blue eyes and be nearsight.
What promotes exponential growth? What constrains population development.
What is potentiation and how does it pose a threat to living organisms. what responsibility does carson believe scientists have to the public.
What proportion of male children in a large family will finally develop baldness in a marriage where both husband and wife are heterozygotes with genotype HnHb?
Discuss these two laws of Thermodynamics and how they relate to the Law of Conservation of Matter. Which of the next may be the path of a protein from the site where its polypeptides are made to its export.
Determine what it may tell us about the dietary history of humans. Establish whether or not you believe it is incorrect to refer to any modern species as primitive, and give details why.
What organism produces the disease and how. Why is Anthrax such a potent weapon of bioterrorism? What are its characteristics that make it so.
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
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