#### Quick Answer: What Is An Independent Variable In Biology?

Independent variable – the variable that is altered during a scientific experiment. Dependent variable – the variable being tested or measured during a scientific experiment. Controlled variable – a variable that is kept the same during a scientific experiment.

## What is a independent variable in biology example?

An independent variable is sometimes referred to as a predictor variable. That is because this variable helps to “predict” and explain changes in response. For example, the amount of fertilizers, an independent variable, can help predict the extent of plant growth (a dependent variable).

## What are independent and dependent variables in biology?

There are two key variables in every experiment: the independent variable and the dependent variable. Independent variable: What the scientist changes or what changes on its own. Dependent variable: What is being studied/measured.

## How do you describe the independent variable?

An independent variable is defines as the variable that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. Independent variables are the variables that the experimenter changes to test their dependent variable.

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## What is a independent variable in an experiment?

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn’t changed by the other variables you are trying to measure. For example, someone’s age might be an independent variable.

## What is the independent and dependent variable in an experiment?

Independent variables (IV): These are the factors or conditions that you manipulate in an experiment. Your hypothesis is that this variable causes a direct effect on the dependent variable. Dependent variables (DV): These are the factor that you observe or measure.

## How do you identify independent and dependent variables?

Independent and dependent variables

1. The independent variable is the cause. Its value is independent of other variables in your study.
2. The dependent variable is the effect. Its value depends on changes in the independent variable.

## Which is dependent variable?

The dependent variable is the variable that is being measured or tested in an experiment. 1 For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants’ test scores, since that is what is being measured.

## How do you determine independent and dependent variables?

How can you Identify Independent and Dependent Variables? The easiest way to identify which variable in your experiment is the Independent Variable (IV) and which one is the Dependent Variable (DV) is by putting both the variables in the sentence below in a way that makes sense. “The IV causes a change in the DV.

## What is the independent variable in science answer?

The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable.

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## What is a primary independent variable?

Independent variables are variables for which an association with the dependent variables is sought. The research question should define the primary independent variable, which is commonly a specific treatment or a key subject characteristic.

## Is temperature independent variable?

An independent variable is one that is unaffected by changes in the dependent variable. For example when examining the influence of temperature on photosynthesis, temperature is the independent variable because it does not dependent upon photosynthetic rate. For example, photosynthesis is dependent upon temperature.

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