Density is a derived unit because it's not reported as a pure unit. (A pure unit would be something like kilograms or meters.) In contrast, the units for density are kg/m3. Density is the ratio of mass to volume; mass has the unit 'kilograms' (kg) and the unit for volume is cubic meters (m3).
Density is an intensive property, which means the amount of the material is irrelevant. The density of a substance is constant.
A synonym for observation could be remark.
Support, Blood cell production, Protection
Answer:
It would be 100% purple flowers because 4 quarters equals 1.00 and it would be 50% white flowers because 2 quarters equals 50