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a) Explain how the presence of formed particles (i.e. red cells) in blood makes its apparent viscosity around four times that of plasma. Explain also why this apparent viscosity should depend on flow rate.
b) In order to prepare a plasma sample, whole bood is centrifuged at 1200 rpm (20 revolutions per second). Given that the centrifugal acceleration is given by rω2 (ω= 2πf) and that the equivalent radius r is 10 cm, estimate how long blood samples should be centrifuged to ensure that the red blood cells will have packed down to the bottom of tubes in which the height of fluid is 5 cm. (Assume that the red blood cells obey Stoke's law).
c) Explain some of the problems in measuring whole blood viscosity and why some methods are more reliable than others.
Explain the transfer of energy and bioaccumulation through primary , secondary, tertiary, and quaternary trophic levels. You may answer this part of the question by drawing a diagram and using arrows where applicable .
how can things like these that are not considered to be alive evolve ?
If the temperature increases and the pressure remains constant and also the moisture content of the air does not change will the mixing ratio change? Why or why not?
Explain why the surface air on the downwind side of a mountain can be drier than the surface air on the upwind side. What is this effect called? Can you think of a location in the United States where this might actually occur?
Write a paper which synthesizes sources to describe a fictitious case study concerning a high risk student athlete named Jason who is a 19 year old who is a white individual in danger of failing and dropping out of college.
If the average porosity is 16 percent, the average connate water is 24 percent, and average sand thickness is 12 feet, what is the areal extent of the fault block?
please respond to one of the following questions regarding the application of program evaluations.why is it difficult
Explain some of the main pros and cons in the debate about whether to keep or abolish the current Electoral College process.
1. what is a planetary nebula? 2. what would the major impact be on earth be if the earth remained in its present orbit
True regarding nicotine usage and True concerning sexual discrimination and True concerning the dynamics of sexual discrimination.
earthquake databasesthe u.s. geological survey usgs contains a real-time database of global earthquake activity. from
there are two types of genetic drift. describe and give an example of both the bottle neck effect and the founder
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