A fomite is _________ that can transmit disease.
A) a vector
B) an animal
C) an inanimate object
D) a cough or sneeze droplet
Ans: C) an inanimate object
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Complex tool use, spoken language, and complex foraging strategies were all important hallmarks of human evolution. Current thinking is that each of these was a consequence of:
A. bipedalism and freeing the hands from locomotion. B. increasing body size and release from predation. C. increasing brain size and the development of culture. D. sexual selection. E. None of the above.
Wöhler revolutionized biology through his demonstration that biological molecules are governed by the ordinary laws of physics and chemistry. He demonstrated this principle by
A) synthesizing urea in the laboratory from ammonium cyanate. B) developing techniques for isolating, purifying, and analyzing subcomponents of cells. C) defining the laws of heredity. D) discovering active agents in cell extracts that were specific biological catalysts that have since come to be called enzymes. E) inventing mass spectrometry which is commonly used to determine the size and composition of individual proteins.
Food poisoning is often caused by a bacterium called ________
A) Salmonella B) Staph C) MRSA D) Bacillus anthracis
Epidemic typhus, spread by lice, is caused by
A) Chlamydophila pneumonia. B) Chlamydophila psittaci. C) Ehrlichia caffeensis. D) Rickettsia prowazekii. E) Rickettsia typhi.