Making Connections and Feedback Loops

Front

What is an independent variable in an experiment?

Back

An independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

Front

What is a dependent variable in an experiment?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is the purpose of a control group in an experiment?

Back

A control group is used as a standard for comparison to determine the effect of the independent variable.

Front

How does exercise affect heart rate?

Back

Exercise typically increases heart rate as the body requires more oxygen and nutrients to fuel the muscles.

Front

What is a feedback loop in biological systems?

Back

A feedback loop is a process in which the output of a system influences its own operation, often to maintain homeostasis.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms regulate their internal environment to maintain stable, constant conditions.

Front

What is the significance of increasing sample size in an experiment?

Back

Increasing sample size improves the reliability and validity of the experimental results by reducing the impact of outliers.

Front

What is the relationship between exercise and body temperature regulation?

Back

During exercise, the body generates heat, and mechanisms like sweating and shivering help regulate body temperature.

Front

What is a bar graph used for in data representation?

Back

A bar graph is used to visually compare different categories of data, making it easier to identify trends and differences.

Front

What does it mean to analyze data in an experiment?

Back

Analyzing data involves interpreting the results to draw conclusions about the relationship between the independent and dependent variables.