All of the following are true statements regarding clinical specimens EXCEPT:
a) clinical specimens include saliva, feces, and blood
b) clinical specimens must be properly labeled and promptly transported to the lab
c) universal precautions are observed in order to protect specimens from contamination
d) clinical specimens are often transported in special media to help preserve them
Answer: c) universal precautions are observed in order to protect specimens from contamination
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Genetic engineering
A. allows the use of bacteria as production factories for a number of molecules. B. relies on recombinant DNA technology. C. is dependent on RNA enzymes. D. relies completely on conjugation. E. allows the use of bacteria as production factories for a number of molecules AND relies on recombinant DNA technology.
Macrophages and dendritic cells are
A. T cells. B. B cells. C. antigen-presenting cells. D. antibody-producing cells.
Which of the following is a false statement about plant secondary metabolites?
A. Some can be used to treat human diseases. B. Some can be poisonous to humans. C. The activity of certain medicines is due to secondary metabolites. D. Some of them can cross the placenta during pregnancy. E. They are too unpredictable to use in pharmaceutical research.
Write out the growth equation including the following factors: natality, mortality, immigration, and
emigration. Provide a one-sentence explanation for the impact of each of these factors on the population growth rate. What will be an ideal response?