Koch's postulates were used to demonstrate the relationship between
A) HIV and AIDS.
B) Mycobacterium leprae and leprosy.
C) liver parasites and liver cancer.
D) Haemophilus influenzae and meningitis.
E) Haemophilus influenzae and the flu.
D
Bloom's Taxonomy: Application
Section: The Nature of Infectious Disease
Learning Outcome: 14.13
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Crop plants have been protected from certain insects by the addition of a gene for a specific insect toxin from the bacterium
A. Agrobacterium tumefaciens. B. Bacillus thuringiensis. C. Herpes simplex. D. Pseudomonas. E. tobacco mosaic.
High blood pressure in mammals reflexively causes a decrease in heart rate, which results in lowered blood pressure. This is a __________ because ____________
A. negative feedback loop; response to the signal results in a decrease of that signal B. negative feedback loop; response to the signal results in an increase of that signal C. positive feedback loop; response to the signal results in a decrease of that signal D. postive feedback loop; response to the signal results in an increase of that signal E. None of the above are correct.
What significant event occurred during the Cambrian explosion in Earth's history?
A) life first appeared B) eukaryotes first appeared C) plants first appeared D) multicellular animals first appeared
Darwin proposed natural _________, the idea that environmental conditions favor certain traits, as the mechanism of evolution.
Fill in the blank(s) with the appropriate word(s).