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.
Homo sapiens evolved in Africa around 150,000 years ago. The modern human, known as Homo sapiens sapiens, is a sub species of the original Home sapiens.We are constantly thinking about our origins.his theory believes that Homo sapiens sapiens evolved in Africa and were truly the first modern humans. (Lewin, 1987) They then moved North out of Africa for the second time around 60,000-45,000 years ago moving into other locations of the world.