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Biology, 09.09.2021 14:00 reaunnatowns

Use the words in the bank below to fill in the blanks in each paragraph that follows. veins transport circulatory blood
Arteries oxygen lungs heart
Nutrients energy carbon dioxide pumped
Capillaries dark bright intestine
Away heat to atmosphere

All organisms need to materials around to the different parts of their body. This is the function of the system. The circulatory system contains a liquid called , a pump called the and a group of vessels called and .

One thing that must be transported is a gas called . oxygen enters the blood through the . it is then through the heart and around the body where it is combined with food to make . the body creates another gas as a waste product called . carbon dioxide is returned to the heart and then to the lungs where it is exhaled back into the .

The vessels that transport blood from the heart are known as arteries. The blood inside arteries is red because it is filled with oxygen. The vessels that transport blood the heart are known as veins. The blood inside veins is red because it is low in oxygen. are smaller vessels that connect the arteries and veins.

from food are also circulated around the body by the circulatory system. They enter the blood from the small . the circulatory system also assists in temperature regulation by transporting around the body.

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