In which microscope does the image look like a negative stain?
a. Fluorescence microscope
b. Phase-contrast microscope
c. Darkfield microscope
d. Two-photon microscope
e. Scanning acoustic microscope
Ans: c. Darkfield microscope
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The specific field of study that examines the gene products of a genome is known as
A) genomics. B) bioinformatics. C) annotation. D) proteomics. E) none of the above
All of the following are involved with chewing the cud EXCEPT
a. regurgitation of food. b. increased breakdown of food. c. exposure of new surfaces for rumen microbes. d. incorporation of more oxygen into the food.
Which of the following is associated with r-selected species?
a. They have large numbers of large offspring. b. They have small numbers of small offspring. c. They have large numbers of small offspring . d. They have small numbers of large offspring
HEPA filters are used to remove microbes from
A. air. B. liquids. C. medical instruments. D. human tissues. E. All of the choices are correct.