Which of the following would support the hypothesis that bacteria have mutually beneficial relationships with us?
A) Bacteria can metabolize food using alternate pathways.
B) Most intestinal bacteria cannot live outside the body.
C) Bacteria derive benefit from waste materials in our intestines.
D) Mice that were made "germ free" did not absorb and metabolize nutrients as well.
Answer: D
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Pyrogens are
A. fever-inducing substances. B. fever-inhibiting substances. C. phagocytosis-enhancing substances. D. complement activators.
Light that is absorbed by water is converted to:
a. short wave radiation. b. long wave radiation. c. heat. d. mass. e. green light.
Three of the four answers listed below are parts of a common molecule. Select the exception
a. phosphate group b. adenine c. deoxyribose d. ribose
An increased incidence of anal cancer is observed in patients who have:
a) syphilis b) Human Papilloma Virus (HPV) c) gonorrhea d) Epstein Bar