Oxygen serves as the terminal electron acceptor in

A. fermentation.
B. aerobic respiration.
C. anaerobic respiration.
D. reduction.


B

Biology & Microbiology

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A calorie is the commonly used unit of chemical energy. It is also the unit of  

A.  light. B.  magnetism. C.  sound. D.  heat. E.  radioactivity.

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Cancer causing mutations are always the result of chromosomal rearrangements

a. True b. False

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Which of these events occurred earliest in the history of Earth?

a. formation of oxygen b. first humans c. evolution of land plants, fungi, and land animals d. origin of eukaryotes e. origin of multicellularity

Biology & Microbiology

Which is not a characteristic of all life? 

A. responsiveness B. evolution C. reproduction D. random cell structure

Biology & Microbiology