Body Systems and Homeostasis Regents Questions

Front

What happens to heart rates during exercise?

Back

Heart rates increase with exercise.

Front

What is the dependent variable in an experiment measuring pulse rate?

Back

The pulse rate of each person.

Front

What is the main function of gas exchange in the body?

Back

To remove carbon dioxide and supply oxygen to the body.

Front

Which cells in the body sense temperature changes?

Back

Nerve cells.

Front

What is a potential flaw in an experiment if it lacks a control group?

Back

The results may not be reliable or valid.

Front

Define homeostasis.

Back

The process by which a stable internal environment is maintained in the body.

Front

What role do nerve cells play in homeostasis?

Back

They detect changes in the environment and send signals to the brain.

Front

How does the body respond to overheating?

Back

By sweating and increasing blood flow to the skin.

Front

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

Back

It allows for comparison to see if the treatment had an effect.

Front

What is the relationship between pulse rate and physical activity?

Back

Pulse rate typically increases with physical activity.