Which of the following benefits to humans is NOT attributable to phenolics?
A. antioxidants in red wine
B. the flavor of vanilla
C. absorption of ultraviolet radiation
D. the sweetness of honey
E. the taste of chillies
D. the sweetness of honey
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The atmospheric pressure on top of Mt. Everest is only about 238 mmHg, so the approximate partial pressure of oxygen there is
A. 50 mmHg. B. 476 mmHg. C. 186 mmHg. D. 238 mmHg. E. 2.4 mmHg.
The Human Microbiome
What will be an ideal response?
Which of the following plants is not a biennial?
a. carrot b. Queen Anne's Lace c. foxglove d. cabbage e. iris
In his transformation experiments, what did Griffith observe?
A) Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. B) Mixing a heat-killed nonpathogenic strain of bacteria with a living pathogenic strain makes the pathogenic strain nonpathogenic. C) Infecting mice with nonpathogenic strains of bacteria makes them resistant to pathogenic strains. D) Mice infected with a pathogenic strain of bacteria can spread the infection to other mice.