Being Human

This system supplies the body with oxygen and rids it of carbon dioxide.

• circulatory
• respiratory
• muscular
• nervous

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The major organ of this system is the brain

• Circulatory System

• Digestive System

• Nervous System

• Immune System

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Which system pumps blood through your body?

• circulatory
• digestive
• respiratory
• muscular

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What important substance is replenished as blood flows through the heart?

• iron
• nitrogen
• water
• oxygen

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As you exercise, your circulatory system works with which other system to take in oxygen?

• muscular
• digestive
• respiratory
• endocrine

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Where does digestion start?

• mouth
• throat
• stomach
• intestines

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Which part of your digestive system absorbs nutrients into your bloodstream?

• stomach
• intestine
• mouth
• bladder

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What happens to what's left of our food after it goes through the intestines?

• goes back to the stomach
• absorbed into blood
• becomes stomach acid
• disposed of in the bathroom

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As your body works harder, what happens to your HEART rate?

• increases
• decreases
• stays the same
• beats backwards

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If you take a rest after running a mile, what happens to your BREATHING rate?

• increases
• decreases
• stays the same
• none of these

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