Body Systems

Which of the following is an example of homeostasis?

• taking out the trash
• drinking water
• sweating on a hot day
• taking a shower

Which body system gets oxygen from the environment and removes carbon dioxide and other wastes from the body?

• Circulatory
• Respiratory
• Digestive
• Skeletal

The smallest unit that is a building block for all life.

• tissue
• organelle
• cell
• molecule

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Which system transports materials from the digestive system and respiratory system to the cells?

• circulatory
• respiratory
• digestive
• skeletal

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What does the digestive system do?

• Breaks down and handles food
  
  
• Pumps blood throughout the body
• Helps you breathe
• Helps your arms and legs move

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Which of the following is not part of the digestive system?

• mouth
• esophagus
• heart
• intestines

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Your body couldn’t breathe without this system. Which one is it?

• circulatory

• skeletal

• respiratory

• excretory

When you breathe in air, you inhale oxygen into your lungs and exhale ____.

• carbon dioxide
• oxygen
• nitrogen
• carbon monoxide

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The two major organs of the respiratory system where the gas exchange takes place are called ______.

• stomachs
• brains
• lungs
• nerves

With circulation, the heart provides your body with which of the following? Choose the best answer. 

• oxygen
• nutrients
• a way to get rid of waste
• all of the above

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