Activities Key Terms Quizzes Art Chapter 23 Self-Quiz
Unit 4: Evolution Human Evolution Review
  1. Humans are members of the class that evolved from mammal-like 220 million years ago.
  2. Humans possess the basic mammalian characteristics including body and glands that produce milk.
  3. Humans belong to the order , which developed large and opposable , and to the family , which include gibbons and the great apes - , , and .
  4. Early human ancestors divulged from other by developing the ability to walk , which allowed them to dwell on the ground and use for using tools.
  5. Early members of the genus Homo divulged from Australopithecus species and originated in .
    • Homo made simple tools.
    • Homo made more advanced tools and had larger brains.
    • Homo was a close relative of early Homo species, but probably was not a direct ancestor of Homo sapiens.
  6. Two hypotheses try to explain the origin of modern humans.
    • The hypothesis suggests that modern humans arose in Africa 100,000 to 200,000 years ago and spread to other parts of the world.
    • The hypothesis suggests that modern humans evolved in many locations around the world at the same time with worldwide gene flow.
bio1100 Home Apr 12, 2006 Print Print