Hantavirus is transmitted by which of the following ways?
A. Via the oral-fecal route when deer mouse feces contaminate drinking water
B. Directly from the saliva of a deer mouse after being bitten
C. From a mosquito that first bites a deer mouse, and then bites a human
D. Aerosolized particles of deer mouse feces, urine, or saliva
E. Aerosolized droplets from human to human
Answer: D
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For water to be transported to the top of a tall tree, several forces must be at work. From the choices below, which combination of forces explains this sort movement?
a. turgor pressure and evaporation b. water heat capacity and pH c. cohesion and transpiration d. gravity and conductivity
Which of the following statements is false?
a. It is assumed that lower animals are incapable of perception. b. Humans, as the most complex organisms, have all of the sensory organs found in lower forms. c. Mechanoreceptors are responsible for the senses of equilibrium and hearing. d. Nociceptors detect damage to tissues. e. A lobster reacts to the boiling water in which it is placed to cook.
Which is NOT part of the nitrogen cycle?
a. denitrification b. deammonification c. nitrogen fixation d. ammonification e. uptake by autotrophs
The innermost serous membrane layer in direct contact with the heart is the:
A. parietal pericardium B. visceral pleura C. synovial layer D. visceral pericardium E. peritoneum