The West is blinking in disbelief â Vladimir Putin just invaded Ukraine. German diplomats, French Eurocrats and American pundits are all stunned.
The  circulatory system is the body's transport system. It is made up of a group of organs that transport blood throughout the body. The heart pumps the blood and the arteries and veins transport it. Oxygen-rich blood leaves the left side of the heart and enters the biggest artery, called the aorta.
Proteins have many functions in the human body. Examples of this  are: Transport- transportation of oxygen from the lungs to other  body tissues by hemoglobin. Hormonal- actâ¦s as a hormone in the  endocrine system. Receptor- forms a glycoproteins complex when a  carbohydrate is added.