Good hand washing is the best preventive measure against the common cold.
a. true
b. false
a. true
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During the inflammatory response, dilation of blood vessels is caused by
A. nitric oxide. B. histamine. C. cytokines. D. phagocytes. E. both histamine and nitric oxide.
Competitive exclusion is based upon the idea that ____
a. one species will voluntarily allow the other to survive b. no two species can completely occupy the same niche c. the larger species will dominate the smaller d. competition is overrated as a factor in species survival e. two species can live together, if they share the same niche but only at alternate times
For question 15, what is the color of the light emitted by the fluorescent protein?
A) red B) blue C) yellow D) green
African sleeping sickness is caused by Trypanosoma brucei, a flagellated protist with a kinetoplast. Which of the following diseases is caused by a pathogen classified in the same supergroup of protists as T. brucei?
A. amoebic dysentery B. giardiasis C. malaria D. dinoflagellate toxin-induced nervous disorders