Manufacturers make vegetable oils solid or semisolid at room temperature by _____.
A. adding hydrogen atoms to the double bonds in the fatty acid hydrocarbon chains
B. removing hydrogen atoms and forming additional double bonds in the fatty acid hydrocarbon chains
C. removing hydrogen atoms and forming additional single bonds in the fatty acid hydrocarbon chains
D. adding hydrogen atoms to the single bonds of the fatty acid hydrocarbon chains
E. none of the above
Ans: A. adding hydrogen atoms to the double bonds in the fatty acid hydrocarbon chains
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Oxygen is used during a reaction if the process is:
A. oxygenic. B. anoxygenic. C. aerobic. D. anaerobic.
The land mass labeled 1 in Figure 18-2 is called:
a. Eurasia.
b. Laurasia.
c. Antarctica.
d. Gondwana.
e. Pangea.
Which of the following contributes to an erythrocyte's efficiency in distributing oxygen?
a. presence of mitochondria b. biconcave shape c. lobed nuclei d. granules e. extraordinarily large size
Imperfect multicollinearity is when:
A. two or more independent variables have nearly an exact linear relationship. B. the r-squared coefficient is nearly zero. C. two independent variables are nearly orthogonal. D. the coefficients on two independent variables are nearly equal.