What biomarker found in the plasma is a proxy indicator for fruit and vegetable intake??
A) isoflavones
B) urinary nitrogen
C) vitamin C
D) carotenoids
D
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In which of the following situations is positive feedback necessary?
A) Blood pressure B) Bleeding C) Coughing D) Childbirth
The kingdom of one-celled organisms is called:
A. protista. B. viruses. C. prokaryotes. D. eukaryotes.
Certain medications must be given in reduced doses to elderly patients because:
A. the body may rapidly absorb and process the medication. B. renal function decline may result in toxic drug levels. C. many organs are no longer responsive to certain drugs. D. the liver increases its ability to detoxify certain drugs.
The variable that researchers observe to see if it changes as a result of a treatment is called the ________ variable.
A. experimental B. group C. independent D. dependent