Infections by Helicobacter pylori cause 90% of peptic ulcers in the United States. These bacteria have pili that are only expressed in acidic conditions. A characteristic of this organism should be an ability to
A. avoid ingestion by cells in the immune system.
B. enter the bloodstream.
C. attach to cells in the host organism's stomach.
D. induce a large antibody response.
E. move in the direction opposite the pili.
C. attach to cells in the host organism's stomach.
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A. Myoglobin is made of nucleic acids B. Myoglobin lacks hydrogen bonds C. Myoglobin is made of only one polypeptide chain D. Myoglobin is not helical or pleated
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Indicate whether the statement is true or false.
Food preference in garter snakes is learned behavior
Indicate whether the statement is true or false.
Quantitative inhibitors
A) are produced in small quantities by a plant. B) are toxic to herbivores. C) reduce digestibility of plant material. D) include cyanide and alkaloids.