Some of the largest naturally occurring plasmids occur in the
A) methanogens.
B) genus Thermoplasma.
C) extreme halophiles.
D) genus Picrophilus.
Answer: C
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Facultative anaerobic bacteria
a. do not tolerate oxygen. b. respire in low oxygen. c. are chemosynthetic. d. require oxygen to perform photosynthesis. e. are common in open water samples.
The RNA molecules that carry amino acids to the ribosomes during protein synthesis are called ________.
A. ribozymes B. ribosomal RNA C. transfer RNA D. messenger RNA E. primer RNA
The sum total of behavior patterns of a social group, passed between generations by learning and
symbolic behavior, is a. society. b. folklore. c. culture. d. personality. e. adaptation.
The stomach mixes food with secretions of the stomach wall to form
A) gastric juice. B) a bolus. C) gastrin. D) chyme.