An organism that uses methane or methanol as its sole carbon and energy source is called a ________.
A. methanogen
B. methylotroph
C. methylogen
D. methanotroph
Answer: B
Biology & Microbiology
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What is/are the variable structure(s) of a nucleotide?
A) the phosphate group B) the sugar C) the base D) the sugar and the base
Biology & Microbiology
The light sensor in a Chlamydomonas cell allows it to sense both light direction and light intensity. What do we call this light sensor?
a. a vacuole b. an eye c. a spot d. an eyespot
Biology & Microbiology
Considering only the steps that take place during translation, which of the following is not needed in order for translation to occur?
A) DNA template B) ribosomes C) tRNA D) sources of energy, including ATP
Biology & Microbiology
Localized tissue damage resulting from prolonged exposure to cold is called _______.
a. hypothermia b. frostbite c. frostnip d. coldsnap
Biology & Microbiology