Question

There are 150 cacti plants per square kilometer in a certain area of Arizona Desert. To which population characteristic does this information refer?

-Age Structure
-Population Density
-Growth Rate
-Geographic Distribution
*i had chosen geographic distribution but it's wrong, what is the right answer???*

Answer 1

age structure and growth rate are obviously not the answer.
Population density is the amount of plants in a specific area
Geographic distribution is the amount of plantes distribution of plants over a large area (so the population density per area)