Describe a difference between the RNA polymerases of eukaryotes and prokaryotes
What will be an ideal response?
In eukaryotes, three polymerases (I, II, III) have been identified; only one has been described in prokaryotes.
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Which of the following is the best description of a protozoan?
A. a heterotrophic protist B. a chemotrophic protist C. a heterotrophic prokaryote D. a chemotrophic prokaryote E. a photosynthetic protist
You have to determine what method is best to prevent the growth of microorganisms in your company's food, ham roasts. This method should be efficient, have a high kill rate, not change the food integrity or taste for the most part, and not add much in the way of chemicals. What would you choose?
A. Gamma radiation B. Pasteurization C. Filtration D. Food preservatives E. Freezing
Our knowledge of existing species is limited and
biased toward __________. Fill in the blank(s) with the appropriate word(s).
During inhalation,
a. the pressure in the thoracic cavity is greater than the pressure within the lungs. b. the pressure in the pleural sac is less than the pressure within the lungs. c. the diaphragm moves upward and becomes more curved. d. the chest cavity volume decreases. e. movement of the diaphragm is inhibited