Which city is considered a brown-air city because the pollutants in the air undergo chemical reactions in the sunlight to form smog?
A. Boston
B. Philadelphia
C. New York
D. Los Angeles
E. All of the choices are correct.
Answer: D
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Which of the following methods sterilize the materials?
A. Pasteurization B. High-temperature-short-time pasteurization (HTST) C. Ultrahigh-temperature (UHT) method D. None of these are sterilization methods.
All of the following photosynthetic pigments are found in red algae except:
a. chlorophyll a. b. phycoerythrin. c. fucoxanthin. d. phycocyanin. e. chlorophyll d
The RNA molecule involved in both transcription and translation is ________ Fill in the blank(s) with the appropriate word(s)
Two bacterial strains have the same genes for metabolizing a carbohydrate, but one is wild-type for a regulatory inducer while the other does not produce the inducer. Which of the following statements is CORRECT with regard to the metabolism of the
bacteria? A) The two bacterial strains have the same phenotype. B) The two bacterial strains have different phenotypes. C) The genotypes and phenotypes of the two bacterial strains are the same. D) The two bacterial strains have the same phenotype but have different genotypes. E) The answer cannot be determined from the information provided.