The graph below shows one factor that can affect the relative thickness
(viscosity) of human blood when plasma volume is kept constant.
Blood
Relative Thickness
A
Plasma
40
0 20 40 60
Red Blood Cells (% of blood)
What effect does the percentage of red blood cells have on the viscosity of blood
A. Increasing the percentage of red blood cells causes blood viscosity to
decrease.
Increasing the percentage of red blood cells causes blood viscosity to
increase.
C. Decreasing the percentage of red blood cells causes plasma levels
to increase and blood viscosity to increase.
Decreasing the percentage of red blood cells causes plasma levels to
increase and blood viscosity to decrease.
D.

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Explanation:

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the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.