For a molecule to be reduced, it gains electrons from the environment. How else is a molecule reduced?
a. gaining hydrogen atoms
b. losing hydrogen atoms
c. gaining oxygen atoms
d. losing oxygen atoms
e. both losing hydrogen atoms and gaining oxygen atoms
A
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An organism that can use energy and inorganic substances to produce all the organic material it requires is a(n)
A. consumer. B. decomposer. C. autotroph. D. secondary consumer. E. heterotroph.
Post-exposure prophylaxis for rabies includes shots of HRIG (human rabies immune globulin) and rabies vaccine. The HRIG provides ________________ whereas the vaccine promotes the development of _______________.
A) Artificial passive immunity; natural active immunity B) Artificial active immunity; artificial passive immunity C) Artificial active immunity; natural active immunity D) Artificial passive immunity; artificial active immunity
Which area, A, B, C, or D, is an area of self-perpetuating embryonic tissue that often continuously grows and produces new tissue during the life of a plant?
1.A
2.B
3.C
4.D
Suppose that the human insulin protein that was produced by the bacteria was much shorter than it should be. Upon further investigation, it was found that the DNA of the human insulin gene had a mutation while in the bacterial cells. What type of
mutation could not result in these observations? A) nucleotide insertion B) silent mutation C) nucleotide deletion D) nonsense mutation