When the arteries harden!
Answer:
physician fitness plays a important role in our life it increases our immunity and help in fighting germ, bacteria and viruses
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
Explanation:
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Answer:
I need to see the image to know what its talking about