Question

A scientist is studying the effects of growing human populations on the biodiversity that can be found in a region. Each region selected had a different population density of humans from 1 to 10 million per 10 square miles. Then in each region the number of different species that can be found was recorded. What type of variable is the dependent variable in this experiment?

Answer 1

The different species

Step-by-step explanation:

There are two types of variable in a scientific experiment; Dependent and Independent variable.

An Independent variable is the variable that is intentionally or expectedly altered in order to see the effect on the dependent variable.

A dependent variable is the variable that is been observed for changes as a result of the independent variable.

For example, in the relationship between age and blood pressure, age is the independent variable while blood pressure is the dependent variable.

From the question, the different human populations is the independent variable (because it is the one been intentionally altered) while the biodiversity/different species is the dependent variable (because it is been observed for changes as a result of the different human population).