Viral hepatitis can result in acute disease in the ________, and chronic cirrhosis affects the ________
a. liver / liver
b. liver / pancreas
c. pancreas / liver
d. pancreas / pancreas
Answer: A
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The metal atom bound to the heme group of hemoglobin is
A. iron. B. copper. C. manganese. D. zinc. E. sodium.
Where does the most energetically costly mode of locomotion occur?
A. On land B. Locomotion in the water and on land are nearly equivalent in terms of energy expenditure. C. In the water D. In the air
If you are comfortable with assumptions required for causal analysis and you have estimated the relationship between Sales and running a promotion together with a price discount to be Salesi = 140.3(60) + 4.3(0.7) Promo with standard errors reported in parenthesis. What would you predict to occur in the event of running a discount next week?
A. That it will increase sales by 4.3, and you are 90% confident that Promotions have some effect on Sales. B. That it will decrease sales, and that this has support at the 90% confidence level. C. That it will increase sales, but you cannot reject the null hypothesis that it won't have any effect at the 90% confidence level. D. You are 90% confident that it will increase sales by 4.3.
Atmospheric levels of carbon dioxide have rapidly increased since the industrial revolution. One effect of increased atmospheric CO2 is global warming. What effect does increased CO2 have on plants?
A. some crops such as tomatoes and cucumbers may experienced enhanced growth rates B. C4 photosynthesis may become more important than C3 photosynthesis C. plants may be able to absorb carbon dioxide even with their stomata closed D. plants may no longer need light for photosynthesis