#### Topic Content:

- Meaning of Population
- Factors Affecting Population

The total number of individuals of a given species in a given place is called a **population** or **population size** while the total area occupied by the population is called **population area** and the number of individuals per unit area is called **population density**.

Population density is calculated using the formula,

â‡’ \(\scriptsize Population\: Density = \normalsize \frac{Population \: Size}{Population \: Density} \)

The unit of measurement is population size/unit area.

For example, if the population size of ants is 400 over an area of 200 cm^{2}, the population density can be calculated thus;

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