chapter+1+and+24+homework

Monroe Stadler

From Chapter 1 pages 6-7 1. What anatomical features tell us that humans are vertebrates and mammals? Humans are vertebrates because they have a nerve cord that is surrounded by a vertebral column. We are mammals because we are animals with hair and mammary glands. 2. How do humans differ from other mammals, including apes? Humans have highly developed brains, a complete upright stance, creative language and the ability to use a wide variety of tools, this is what separates us from apes and other mammals. From Chapter 22 pages 475-477 3. How are humans classified? From Domain to Species. Domain Eukarya, Kingdom Aniimalia, Phylum Chordata, Class Mammalia, Oder Primates, Family hominidae, Genus Homo, Species Homo Sapiens 4. What are the characteristics of primates? Primates live n trees, they have mobile limbs, 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? Humans stand completely upright, the humans center of gravity is right over their feet, humans have a broader pelvis and hip joint, the human femur has a longer neck, the human knee joint is different and the human toe is not opposable.