Which of the following genera of the Archaea do not have cell walls?
A. Thermoplasma
B. Halobacterium
C. Thermococcus
D. None of the choices are correct.
Answer: A
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Microorganisms exhibit genomes contained on
A. chromosomes. B. chloroplast DNA. C. plasmids. D. mitochondrial DNA. E. All of the choices are correct depending on the type of microorganism observed.
Which of the following naturalists first
proposed the Great Chain of Being?
a. Darwin b. Lamarck c. Aristotle d. Lyell e. Cuvier
Lipopolysaccharide is located in the ______ ______ of the cell envelope of gram-negative bacteria.
Fill in the blank(s) with the appropriate word(s).
Food chains in the ocean depths tend to be long
because these habitats have a. an abundance of producers. b. stable environmental conditions. c. a variety of energy sources. d. an abundance of decomposers. e. small numbers of predators.