<span>Sternum is not a major muscle in the human body. Sternum is t</span>he long flat bone in the upper middle of the front of the chest. It is also called a Breastbone. Sternum <span>the </span>sternum<span> helps protect the internal thoracic viscera - such as the heart, lungs and oesophagus</span>
Tycho Brache is the person who suggested the sun and moon to orbit the Earth. Danish Nobleman is the person suggested the rest of the planets orbited the sun.
<em>Most trees do 'slow down' during winter, and deciduous trees that lose their leaves shut down photosynthesis entirely. Trees with needles (evergreen trees) that are retained over winter can actually photosynthesize during the winter.</em>
