E. corrodens can be easily recognized in culture by its:
a. pink pigmentation.
b. grapelike odor.
c. large spreading colonial morphologic characteristic.
d. bleachlike odor.
D
E. corrodens can be recognized in culture by its bleachlike odor. The organism does not utilize glucose or other carbohydrates and is catalase-negative. However, it reduces nitrate to nitrite and hydrolyzes both ornithine and lysine.
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Who was the first person acknowledged to have seen living, moving cells by using a microscope?
a. Robert Hooke b. Robert Brown c. Galileo Galilee d. Rudolf Virchow e. Anton van Leeuwenhoek
Which of these combinations would be found in a nucleotide?
a. base-acid-salt b. adenine-thymine-uracil c. base-sugar-phosphate d. DNA-RNA-nucleus e. sugar-protein-fat
Joseph Lister reduced the incidence of wound infections in health care settings by using chlorinated lime water.
Answer the following statement true (T) or false (F)
Scientists began to question the perfection of
the Chain of Being because of a. the discovery of new organisms in new parts of the world. b. the presence of body parts with no apparent function in some organisms. c. the existence of fossil forms. d. similarities in the structures found in different forms of life. e. all of these.