the hardest working horse is a appolosa. the hardest working muscle in your body is the heart. it pumps loads of blood through your body every second!
heart
organ is considered the hardest instrument to play because your whole body is working, also they are not so common, you usually find them in churches
A group of organs working together to perform a particular job in the body is called an organ system. Organ systems are responsible for carrying out specific functions necessary for the body's overall health and well-being.
The colon is an organ. An organ is defined as a collection of different tissues working together for a body function.
Organ systems are groups of organs working together to carry out major body functions.
Many cells working for the same function=a tissue Many tissues working for the same function= an organ Organs working for the same function= an organ system Organ systems working for the same function= you
The heart
A disease is when you have a body malfunction or an organ is not working right.
left ventricle as it pumps blood to all parts of the body..
An organ is made up of different tissues working together to preform a body function.
The heart is the hardest working chamber in the body. It pumps oxygenated blood to the entire body through the arteries and receives deoxygenated blood through the veins to be reoxygenated in the lungs.