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

If you are on the track team and you are trying to increase the number of red blood cells in your blood. Which job of the circulatory system are you trying to improve?

• the delivery of nutrients to the body

• the delivery of oxygen to the body

• the delivery of disease fighters to the body

Which one describes the respiratory and the circulatory systems working together?

• Antigens in the blood

• nutrients delivered to the blood from food

• oxygen delivered to the cells

• pathogens identified in the blood