The formation of citric acid from oxaloacetic acid and an acetyl group begins ________.
A. the electron transport system
B. glycolysis
C. the Krebs cycle
D. oxidative phosphorylation
E. fermentation
Answer: C
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Coronary circulation involves ____
a. only the aorta b. only the coronary arteries c. only capillaries d. the aorta and coronary arteries e. the aorta, coronary arteries, and capillaries
What is NOT a product of the light-independent reactions?
a. ADP b. NADP+ c. oxygen d. glucose e. free phosphates
Curtis's contention that if the last blue whale
were to choke on the last panda bear and it still would not be the end of the world was his way of a. stressing the improper attitude of some environmental activists and to encourage the drilling for oil in Alaska. b. stressing the importance of some bacteria to the biosphere. c. encouraging the study of endangered species. d. shocking an audience into the study of conservation biology. e. doing none of these
Charles Darwin used ________ to illustrate the mechanisms of natural selection.
A. natural history B. biology C. evolution D. artificial selection