
Sulfur occurs in all living matter primarily as a component of
A) fatty acids.
B) nucleotides.
C) amino acids.
D) carbohydrates.
E) DNA and RNA.
Correct Answer:
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Q30: Turning inorganic carbon into organic carbon is
Q31: Nitrogen is
A) an important constituent of carbohydrates
Q32: The organisms that obtain energy by oxidation
Q33: The organisms isolated from hydrothermal vents are
Q34: Which of the following may be used
Q36: Nitrifiers
A) are obligate anaerobes.
B) are chemolithotrophs.
C) convert
Q37: During aerobic decomposition of organic matter the
Q38: In many aquatic habitats, the growth of
Q39: Phosphorus is a component of all of
Q40: The conical sea floor vents that spout
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