Explanation:
Use the terms inside the box to complete the idea of each sentence in the paragraph. valves exchange arteries veins contracts capillaries oxygen wastes nutrients carbon dioxide The function of the circulatory system is to transport 1 __and_2 to cells and carry 3 away from cells to the organs responsible for eliminating them from the body. When the heart 4, it produces pressure which pushes the blood to the different parts of the body. The 5 are responsible for transporting blood away from the heart while the 6 carry blood back to the heart including the waste gas_7_. To prevent the blood from flowing backwards there are flexible flaps of tissue called 8 Arteries and veins are connected by tiny, thin-walled 9. The 10 of nutrients, wastes, oxygen and carbon dioxide occur between the capillarie
