Demarcus+homework+chp+1+and+22

DeMarcus Waggoner August 25, 2008 Science Chapter 1 and Chapter 22

From Chapter 1 pages 6-7 1. What anatomical features tell us that humans are vertebrates and mammals? Brains spinal cord lung heart liver stomach kidney and intestines. We also have highly developed brains completely upright stance creative language and ability to use wide variety of tools. 2. How do humans differ from other mammals, including apes? Humans have highly developed brains compared to apes. Apes came from a relative of our but we did not come from the.

From Chapter 22 pages 475-477 3. How are humans classified? From Domain to Species. Out of the three domains humans are apart of the Eukarya. 4. What are the characteristics of primates? Primates have mobile linbs; grasping hands a flattened face; binocular vision; a large’ complex brain; and a reduced reproductive rate. 5. What major differences exist between the chimpanzee skeleton and the human skeleton? Their brain size is smallest in prosimians and largest in modern humans. The cerebral cortex, with many association areas, expands so much that it becomes extensively folded in humans.