Density, distribution, and growth rate are characteristics used to classify which one of the following?
question 6 options:

biomes

populations

limiting factors

age structure

Populations

Explanation:

Population refers to the total number of all members of a species occupying a particular area or habitat at a given time. Populations are not static but change in size. Some of the characteristics of population are:

Density which refers to the number of members of species per unit area or volume.Distribution refers to the spread or dispersion of individuals of a species within an area or habitat. The movements are either emigration or immigration.Growth rate is the rate of increase or decrease in the number of individuals in a population and is determined by the balance between birth rate and death rate.

Photo means light and synthesis means combination so combination of light