Question

the formula to calculate population density is ______.
a. land area \div number of populations
b. number of populations \div land area
c. number of organisms in a region \div land area
d. land area \div number of organisms in a region

please select the best answer from the choices provided

a
b
c
d

Explanation:

🆕 New Concept Discovered: Population Density
How crowded a specific area is.

Step 1: Understand the concept of density

In science and geography, "density" measures how much of something exists within a specific amount of space.

• Population refers to the individual organisms of a species living in a specific area.
• Density tells us how crowded that area is.

Step 2: Identify the formula

To find out how crowded an area is, we divide the total number of individuals (organisms) by the total space (land area) they occupy:

$$ \text{Population Density} = \frac{\text{Number of Organisms}}{\text{Land Area}} $$

This can also be written as:

$$ \text{number of organisms in a region} \div \text{land area} $$

Step 3: Match with the given options

• a. land area \(\div\) number of populations (Incorrect: upside down)
• b. number of populations \(\div\) land area (Incorrect: we count individual organisms, not the number of different populations)
• c. number of organisms in a region \(\div\) land area (Correct: this measures individuals per unit of space)
• d. land area \(\div\) number of organisms in a region (Incorrect: upside down)

Answer:

C