Nervous System. The nervous system is the control center of the human body. It is made up of the brain, spinal cord, and nerves. It receives and interprets stimuli and transmits impulses to organs.Your brain uses the information it receives to coordinate all of your actions and reactions.ervous System. The nervous system is the control center of the human body. It is made up of the brain, spinal cord, and nerves. It receives and interprets stimuli and transmits impulses to organs.
Finding Lucy. Don Johanson describes finding the knee joint in Hadar, Ethiopia, that first indicated a bipedal hominid had lived 3 million years ago. His subsequent expedition led to the discovery of Lucy, a 40 percent complete skeleton of a new species of hominid, now known as Australopithecus afarensis. The final piece of the puzzle was a skull from the same site, which clearly demonstrated that Lucy's kind were small-brained, although they walked upright.
Best Answer: There is one thing you must understand about the so-called cavemen. They were nothing like the guys you see in the Geico commercials. The species known as AUSTRALOPITHECUS AFARENSIS is an extinct hominid which lived between 3.9 and 2.9 million years ago (if you want an exact year, put BC after the 3.9 million) and was the first hominid--or man-like being--to walk on both feet, and not live in trees.