Which of the following represents a challenge toxicologists face when trying to detect and identify a drug?
a. Almost 100% of the drug will be excreted in the urine within 6 hours.
b. The drug the subject ingested has metabolized into other substances.
c. Extremely large concentrations of drugs are involved.
d. They don’t get paid if they don’t find drugs in the subject’s body.

An adult who follows a 2000-kcal healthy u.s.-style eating pattern should consume ounce-equivalents from the protein foods group per day.

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell