6 How do atoms absorb & emit light? â¢ Key idea: Energy â¢ A photon carries energyâ¢ Electron in orbit has energy because it is moving and it is pulled by nucleus. â¢ When atom absorbs photon, energy of photon promotes electron to higher energy.
Until now, researchers believed that homo sapiens, the direct descendants of modern man, evolved in Africa about 200,000 years ago and gradually migrated north, through the Middle East, to Europe and Asia.
What We Really Know about the Origin of Humans. The origin of humans is most certainly one of the most contentious points of evolutionary theory. Many people who believe in the God of the Bible accept that evolution created the animals but they still believe that humans (or at least their souls) were created by God.