________ Adulthood is divided into early, middle, and late

A physician orders 3 mL of an 8% drug solution. You have only a 10% solution available. How many milliliters of 10% solution do you need to make the new 8% solution?

a. 0.24 mL b. 2.6 mL c. 24 mL d. 12.4 mL

The process of obtaining oxygen, distributing it to the cells, and then removing the gaseous waste products is known as:

a. respiration. b. inhalation. c. exchange. d. expiration.