What are the parts of a human body? Learn about the main parts ... Bitesize 1st Level Science guide on the digestive system for Scotland's Curriculum for Excellence (CfE). What does the heart ...

Learn about human lungs, respiration system, breathing in oxygen and breathing out carbon dioxide. Bitesize 2nd Level Science in ... and the kidneys help keep body temperature and water levels ...

Researchers say they have discovered an entirely new class of life inside the human body, and it is very similar to a virus.

The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...