The specimen of choice to collect in suspected cases of Paragonimus infection is:
a. sputum.
b. blood.
c. urine.
d. stool.
A
Sputum is the specimen of choice in suspected cases of Paragonimus spp. Infection in the lungs can be severe with coughing and shortness of breath.
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Which of the following statements about genotypes and phenotypes is TRUE?
A) Matings between individuals with recessive phenotypes produce offspring with dominant phenotypes. B) Matings between individuals with dominant phenotypes cannot produce offspring with recessive phenotypes. C) Individuals with the same phenotype might have different genotypes. D) Individuals with the same genotype might have different phenotypes.
The development of vaccinations began when Edward Jenner noticed that ________
a. people who had earlier exposure to cowpox did not develop smallpox b. people who drank water from a particular public water pump developed cholera c. bacteria removed from a sick animal would cause the same illness if injected into a healthy animal d. rats were always present when people contracted bubonic plague
Thinking about life's organizational hierarchy in a biological system, which of the following is the correct sequence from the smallest unit to the largest unit?
A. molecule - atom - organelle - tissue - cell B. cell - organelle - atom - tissue - molecule C. organelle - molecule - atom - tissue - cell D. atom - molecule - organelle - cell - tissue E. atom - organelle - molecule - cell - tissue
A taxon that diverges earlier than the other taxa being considered in cladistic analysis is a(n):
a. clade. b. outgroup. c. shared taxon. d. derived taxon. e. homologous taxon.