Question

one thousand micrograms is the same measurement as one milligram.
true
false
question 12 (2.5 points)
an eight - fluid ounce bottle of medication contains sixteen tablespoons.
true
false
question 13 (2.5 points)
which of the following is not measured in usp units?
tetracycline
insulin
heparin
penicillin

Explanation:

Question (First part - about micrograms and milligrams)

We know that the metric prefix "micro-" represents a factor of $10^{-6}$ and "milli-" represents $10^{-3}$. So, 1 milligram ($\text{mg}$) is equal to $10^{-3}$ grams and 1 microgram ($\mu\text{g}$) is equal to $10^{-6}$ grams. To find out how many micrograms are in a milligram, we divide the value of a milligram in grams by the value of a microgram in grams: $\frac{10^{-3}\text{ g}}{10^{-6}\text{ g}} = 1000$. So, 1000 micrograms is equal to 1 milligram.

We know that 1 fluid ounce is equal to 2 tablespoons. So, for an 8 - fluid ounce bottle, we calculate the number of tablespoons by multiplying the number of fluid ounces by the conversion factor (2 tablespoons per fluid ounce). So, $8\times2 = 16$ tablespoons.

USP (United States Pharmacopeia) units are used to measure the potency of certain drugs, especially biological drugs like insulin (for its biological activity), heparin (for its anticoagulant activity), and penicillin (for its antibiotic activity). Tetracycline is an antibiotic that is typically measured in milligrams (weight - based measurement) rather than USP units.

Answer:

True

Question 12