Conversion of ammonia to ____ takes a lot of energy but conserves water
a. urine
b. urea
c. uric acid
d. carbon dioxide
e. hemolymph
c
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Put the following steps in order:1
allolactose binds to the lac repressor protein 2. RNA polymerase binds to the promoter 3. the lac repressor is expressed 4. beta-galactosidase cleaves lactose and generates allolactose 5. mRNA is transcribed from the lac operon at low levels 6. beta-galactosidase, permease, and transacetylase are produced at high levels
a. 1, 3, 2, 5, 4, 6 b. 4, 1, 2, 3, 5, 6 c. 3, 5, 4, 1, 2, 6 d. 3, 4, 1, 6, 2, 5 e. 5, 3, 1, 2, 4, 6
Figure 44.6
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The following question refers to the figure above illustrating logistic growth.
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The initial carrying capacity of an environment is indicated by ____.
A. A B. B C. C D. D E. E
Since O2/H2O is the most electropositive couple, ________ energy is available from ________ than from ________
a. more / fermentation / aerobic respiration b. more / aerobic respiration / anaerobic respiration c. less / anaerobic respiration / aerobic respiration d. less / aerobic respiration / fermentation
Which of the following would the molecule shown above be called?
a. a protein b. a lipid c. a nucleic acid d. a carbohydrate e. an amino acid