Circulatory System

Which system allows blood to circulate throughout the body to transport oxygen and nutrients to all the cells and tissues?

• Nervous

• Respiratory

• Circulatory

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These cells, in the blood, carry oxygen and give the blood its color.

• white blood cells

• plasma

• platelets

• red blood cells

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The cells in the blood that help fight germs like bacteria and viruses

• red blood cells

• platelets

• white blood cells

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The circulatory system works with the __________ system to obtain energy from nutrients that we eat.

• respiratory

• digestive

• skeletal

• nervous

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What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

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The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

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The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory

• digestive

• muscular

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What is the circulatory system made up of?

• Lungs, blood, blood vessels

• Liver, kidneys, and stomach

• Heart, Blood Vessels, and Blood

Which of the following does blood help transport throughout the body?

• undigested food

• Nutrients

• Gases (oxygen and carbon dioxide)

• hormones like adrenaline

Choose the 3 TRUE statements about the circulatory system

• The circulatory system and the respiratory system work together to deliver oxygen to all of the cells and tissues in the body.

• The circulatory system and the respiratory system work together to remove CO₂ and other waste products from cells and tissues in the body.

• The circulatory system, respiratory system, and excretory system all work together to remove waste products from the body.

• The circulatory system is a special system that does not work with other systems of the body.

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