Which of the following are consequences of anaerobic respiration? (Check all that apply.)
A. Some bacteria are able to perform nitrogen fixation.
B. Some bacteria are able to readily survive in both well-oxygenated as well as anoxic environments.
C. Bacteria are able to reduce the levels of NO3? in sewage plant effluents.
D. Some bacteria may cause denitrification.
Answer: D
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Most large cities have required the pasteurization of milk and milk products since
A. 1800. B. 1850. C. 1900. D. 1920.
How long does it take for the primary immune response to kick in after the first exposure to an antigen?
a. 2 weeks b. 3 - 4 days c. 2 months d. 6 weeks e. 12 hours
During a 5-mile run in the high Alps, where oxygen concentration is lower, your body will produce less ATP per molecule of glucose than after the same run near sea level, where there is plenty of oxygen to supply your muscle cells
Approximately how many more molecules of ATP will your muscle cells produce per molecule of glucose at the lower elevation than at the oxygen-scarce high elevation? A) 36 B) 34 C) 32 D) 2
The pH of human blood is between a narrow range of 7.35 and 7.45. If a person's blood pH goes below 7.35 or above 7.45, the body counteracts changes in pH by releasing chemical buffers. This process of buffering changes in pH exemplifies which definition of life?
What will be an ideal response?