Final answer:
The correct answer is d) g/mL. Derived units are formed by combining base units. The units in options a), b), and c) are all derived units, but g/mL is not.
Step-by-step explanation:
The correct answer is d) g/mL.
Derived units are units that are formed by combining base units. The base units in the International System of Units (SI) include meters, kilograms, and seconds. The units in options a), b), and c) are all derived units.
a) cm² is a derived unit for area, which is calculated by multiplying two lengths together.
b) m/s is a derived unit for speed, which is calculated by dividing distance by time.
c) kg is a base unit for mass.
d) g/mL is not a derived unit. Grams (g) is a base unit for mass, and milliliters (mL) is a derived unit for volume. Therefore, g/mL is not a derived unit.