Bird Beaks

5 The Living Environment

  • Subchapter D
    • Interdependence of Life
      • For Grades: 3-5
        • Learning Goal 1
          • For any particular environment, some kinds of plants and animals thrive, some do not live as well, and some do not survive at all.
  • Subchapter F
    • Evolution of Life
      • For Grades: 3-5
        • Learning Goal 1
          • Individuals of the same kind differ in their characteristics, and sometimes the differences give individuals an advantage in surviving and reproducing.