Which of the following contribute(s) to the differences between the Archaea and the bacteria?
A. Archaea differ from bacteria in their tRNA composition, ribosome structure, and antibiotic sensitivity.
B. Archaea have isopranyl glycerol ethers rather than fatty acid esters in their membrane lipids.
C. Archaea lack muramic acid.
D. All of the choices are correct.
Answer: D
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The reaction diagrammed to the right (more than once answer may apply):
A. is the final reaction of glycolysis. B. is one possible pathway in the fermentation of pyruvate. C. shows synthesis of the substrate that enters the citric acid cycle. D. occurs in the cytosol. E. occurs in the mitochondrial matrix. F. occurs twice for each glucose oxidized.
Genes that have DNA sequences similar to functional genes but that do not appear to produce any functional product are ________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following mutualisms is a cleaning mutualism in which one species removes ectoparasites from another?
A) corals and zooxanthellae B) bees and flowers C) ants and acacias D) oxpeckers and large mammals
When viewed with a compound light microscope , which letter would best illustrate the way in which the microscope inverts and reverses the image
a. A b. W c. F d. D