Sulfate reduction in marine sediments is typically ________-limited

a. oxygen
b. light
c. nitrogen
d. carbon


Answer: D

Biology & Microbiology

You might also like to view...

Which of the following is not a function of the general transcription factor, TFIIH?

A. unwinding of the DNA near the transcriptional start site B. recruits nucleotide excision repair proteins to the site of a DNA lesion C. direct interaction with RNA polymerase II D. recruitment of TFIID to the promoter E. formation of the closed complex

Biology & Microbiology

Rank the following chemical bonds from weakest to strongest:

a. hydrogen, ionic, covalent b. hydrogen, covalent, ionic c. ionic, hydrogen, covalent d. ionic, covalent, hydrogen e. covalent, ionic, hydrogen

Biology & Microbiology

What percentage of sodium in the blood is filetered and returned to the body by the kidney?

A) 90% B) 99% C) 80% D) 50%

Biology & Microbiology

All of the following are involved in the generation of an allergic response EXCEPT which one?

A) allergen B) IgE C) IgG D) mast cells and basophils E) histamine

Biology & Microbiology