Chapter 21 Review: 19631/5025603

  1. ________ are the closest species relatives to humans.
    1. Chimpanzees <==== correct
    2. Mice (wrong)
    3. Archaea (wrong)
    4. Bacteria (wrong)
    5. Fungi (wrong)
      Hint
  2. A haploid set of human chromosomes contains about ________ base pairs.
    1. 23 (wrong)
    2. 46 (wrong)
    3. 3.2 million (wrong)
    4. 3.2 billion <==== correct
    5. 3.2 trillion (wrong)
      Hint