All of the following are true of poliomyelitis EXCEPT
A) infection is due to ingestion of contaminated water.
B) initial sites of viral replication are the throat and small intestine.
C) most cases result in muscle paralysis.
D) the majority of cases are asymptomatic.
E) the oral polio vaccine contains attenuated strains of the virus.
C
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Using the figure above and the accompanying paragraph, and knowing that the PKG encoded by the foraging gene has recently been associated with the maturation of out-of-nest behavior in honeybees, what would be a logical explanation for this relationship?
As animals mature, they _____. A) require more food; therefore, PKG levels must increase. B) are more likely to forage; therefore, PKG levels must increase. C) respond to pheromones from the queen, which increases PKG levels. D) are able to fly, an activity that is connected to the increase in PKG levels.
Somatic pain is sensed in all of the following EXCEPT
a. skin. b. skeletal muscles. c. joints. d. tendons. e. visceral organs.
If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be ________.
A. in a gradient of a chemoattractant B. tumbling C. in a gradient of a chemorepellant D. rotating flagella clockwise
Inflammation is an important part of the body's first line of defense, and it involves migration of phagocytes to the area
Indicate whether the statement is true or false