Last+Homework+WB

1. How are humans classified from domain to species? 2. What are the characteristics of primates? 3. What major differences exist between the chimpanzee skeleton and the human skeleton? 22.4 Evolution of Hominids 4. Which fossil hominid is the oldest of the australopithecines? 5. Which hominid is the first to have culture? Explain. 6. Which hominid was the first to migrate out of Africa? 7. How might //Homo habilis//, living 2 MYA, have differed from the austropithecines? 8. How might //Homo erectus//, living about 1.9-1.6 MYA, have differed from //Homo habilis//? 9. What is the out-of-Africa hypothesis and what bearing does it have on the evolution of humans? 10. How do Cro-Magnons, the first of the modern humans differ from the other species in the genus Homo?

1. Human domains are classified with general knowledge characteristics, but species are classified through specific information. 2. The characteristics of primates are moveable forelimbs and hindlimbs, vision that allows identification of objects, and a complex brain. 3. The major differences between the chimpanzee and human skeletons are that the chimps have a curved backbone, but humans have a backbone in an S shape. The chimp pelvis is long and narrow, but the humans is bowl-shaped. Also, the human knee is far more supportive than the chimp knee. 4. The oldest fossil of the australopithecines is called lucy, and is about 3.2 million years old. 5. Homo Habilis is the first hominid to have a culture, due to the fact that their brains are more equipped for speech and language. 6. Homo Ergaster is the first hominid to migrate out of Africa, due to it's tolerance for heat and travel on foot. 7. Homo Habilis differed due to the different ways in which they walked. 8. Homo Erectus differed, due to its ability to lift more weight, hunt, and build homes and speak languages. 9. The out of africa hypothesis states that Homo Sapiens came from Homo Erectus while in africa. 10. Cro Magnons differe because they had an established language, lived in groups, and had types of art.