The oxidized form of inorganic iron that results from microbial oxidative processes is ________.
A. nitrate ion
B. ferric ion
C. sulfate ion
D. ferrous ion
Answer: B
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George Beadle and Edward Tatum created a collection of mutants to study the following pathway
A mutant shows no growth on minimal media; however it shows growth if citrulline is provided. These results indicate the mutation would most likely be in the gene for: A. Enzyme I. B. Enzyme II. C. Enzyme III D. either Enzyme I or Enzyme II. E. either Enzyme II or Enzyme III.
Where rivers slow and drop their sediment load they form deltas termed:
a. dendritic. b. coastal plain. c. tidal flats. d. sand bar. e. tombolos.
Photoautotrophs use the energy stored in the products of photosynthesis directly to run the diverse reactions that sustain life
1.True 2.False
The underlying basis for an allergic reaction is ____
a. IgG production b. complement activation c. cytotoxic T cell activity d. over activity of mast cells e. IgA production