During cellular respiration, NADH
A) is chemically converted into ATP.
B) is reduced to form NAD+.
C) delivers its electron load to the first electron carrier molecule.
D) is the final electron acceptor.
Answer: C
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Fungi and protists serve an important role in the anaerobic digestion of cellulose in ruminants
Indicate whether the statement is true or false.
Which of the following traits of complex multicellular organisms is also shared by some simple multicellular organisms, but not by single-celled organisms?
A. plasmodesmata B. adhesion C. cell signaling D. bulk transport E. None of the answer options is correct.
Inhabitants of oceanic islands resemble forms of the nearest mainland but show some differences. This is an example of
A. biogeography. B. convergent evolution. C. development. D. the fossil record. E. homology.
How would you test to see whether a particular influenza vaccine protects elderly people from influenza?
A. Conclude that elderly people are less likely to be hospitalized or die following vaccination. B. Follow tens of thousands of people over the age of 65 during flu seasons and record illnesses and vaccination status. C. Notice the rise in vaccination rates among the elderly over a period of years. D. Speculate that elderly people who were immunized will have fewer hospital stays and deaths during the winter after vaccination.