Total number of individuals per unit area of unit volume is called

Options

A. Biotic potential
B. Population density
C. Life expectancy
D. Carrying capacity

Answer

To answer the question, "Total number of individuals per unit area of unit volume is called," we need to follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms**: The question asks for a specific term that describes the number of individuals in a given area or volume.

2. **Identifying the Concept**: In ecology, the concept that refers to the number of individuals of a species per unit area or volume is known as "population density."

3. **Defining Population Density**: Population density is defined as the total number of individuals of a species living in a particular area (for example, per square kilometer) or volume (for example, per cubic meter).

4. **Conclusion**: Therefore, the answer to the question is that the total number of individuals per unit area or unit volume is called "population density."

### Final Answer:
The total number of individuals per unit area of unit volume is called **population density**.

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