All of the following pertain to pinworm infections EXCEPT
A) transmission is typically by contact with fomites or inhalation of eggs.
B) diagnosis is by detecting eggs on transparent tape pressed to the perianal area.
C) all family members living with the patient must also be treated.
D) it is most commonly transmitted by cysts in water.
E) it is a helminth disease.
D
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Except for tropical tree ferns, the stems of most ferns are underground rhizomes
a. True b. False
What does adaptive mean in regards to behavior? a. Decreases reproductive success
b. Increases defense against predators. c. Harmful to selective individuals. d. Increases the possibility of finding food. e. Increases reproductive success.
Assemblages of abiotically produced polymers are called:a
stomatolites. b. protobionts. c. polyribosomes. d. endosymbionts. e. ribozymes.
Once an action potential is triggered, there is a
A) reversal of the membrane polarity, with the interior of the cell becoming positively charged. B) reversal of the membrane polarity, with the interior of the cell becoming negatively charged. C) sudden rush of potassium into the neuron. D) sudden impermeability of the membrane to the transport of ions.