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.
the human brain is a specialized organ that is ultimately responsible for all thought and movement that the body produces the human brain is ultimately responsible for all thought and movement that the body produces this allows humans to successfully interact with their environment by communicating with others and interacting with inanimate objects near their position