Answer:
The size of the giraffe population is 16
The population density is

Step-by-step explanation:
To solve this exerciste we first need to make two definitions.
The population of a particular species found at a certain location is the number of individuals. In this case, in the African savanna on that square kilometer the population is 16 giraffes.
We also define population density as the count of number of individuals per unit of area.

In this case, we have 16 giraffes on a square kilometer ⇒
Population density =
