Based on your knowledge of hydrocarbon degradation, what factors most likely limited the rate of petroleum degradation after the Exxon Valdez oil spill off the coast of Alaska?
A) salt concentration
B) temperature
C) inorganic nutrient concentrations
D) temperature and inorganic nutrient concentrations
Answer: D
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Glucose enters cells by
A. osmosis. B. diffusion. C. facilitated transport. D. active transport. E. receptor-mediated endocytosis.
As a result of plate tectonics, new crust is added to the Earth at ____, and old crust is recycled into the mantle at ____
a. oceanic ridges; oceanic trenches b. oceanic ridges; continental crusts c. oceanic trenches; oceanic ridges d. continental crusts; oceanic trenches e. oceanic trenches; continental crusts
Phosphodiesterase catalyzes the conversion of:
a. IP3 to PIP2. b. GDP to GTP. c. cAMP to AMP. d. calcium to calcium-calmodulin. e. a protein to a phosphorylated protein.
The cells of bacteria can be categorized according to arrangement or style of grouping. The greatest variety in arrangement occurs in bacilli.
a. true b. false