In the terrestrial carbon cycle, the abiotic reservoir from which living organisms directly obtain their carbon is _______
Fill in the blank(s) with the appropriate word(s).
Answer: the atmosphere
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An example of a base analog would be
A. EMS B. Nitrous acid C. 5BU D. Nitrogen mustards E. Acridine dyes
Which group of microbes contains organisms necessary for production of wine and bread?
A. Bacteria B. Archaea C. Algae D. Fungi
Which species interaction results in a negative impact on both species involved?
A. competition B. predator/prey C. parasite/host D. commensalism E. mutualism
Which of the following molecular abnormalities is most likely related to cancer risk after infection with papillomavirus (HPV)?
A. Trapping of the Ras protein in a GTP-bound state B. Increased expression of laminin receptor genes C. Functional inactivation of the Rb protein D. Increased expression of epidermal growth factor receptor