What is the final step in prokaryotic DNA replication?
a. helicase opens the fork
b. elongation
c. ligase seals the gaps
d. RNA primers are removed
c. ligase seals the gaps
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In the nitrogen cycle, which of the following involves bacteria converting nitrates into nitrogen gas?
a. denitrification b. nitrification c. ammonification d. eutrophication
Which of the following statements concerning the development of a coelom is FALSE?
a. It requires animals to have either two or three tissue layers. b. It requires the endoderm to be covered by mesoderm. c. It occurs in protostomes and deuterostomes. d. It may occur by schizocoely. e. It is a fluid-filled cavity.
The electron transport chain begins when ____________________ or ____________________ are oxidized.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not an empirically testable conclusion?
A. Multinational firms pay higher wages. B. Larger firms are more productive. C. The unemployment rate would not have risen above 8% if the U.S. Treasury would have bailed out Lehman Brothers leading into the Great Recession. D. States with minimum wage laws experience higher unemployment rates.