Directions : Select the print icon from your browser.

Printable Crossword Puzzle
The 12 Structural Levels in the Hierarchy of Biological Organization

Across :                                                               Down :

1. consists of two or more organs -                         1. individual living entity
   integrated and coordinated to function
                                                                               2. biological community and all abiotic
3. populations of all species within same                       factors of the environment
    area
                                                                               5. all of life's properties first occur
4. localized group of organisims of same
    species                                                                8. integrated group of cells with common
                                                                                   structure and function
6. sum of all our planet's ecosystems
                                                                               9. specialized center of body function
7. smallest unit of an element retaining the                      composed of different types of tissues
    properties of that element
                                                                               10. two or more atoms held together by
11. formed body within cells; has specific                       chemical bonds
      function(s)
 
 




Solution

Across:                                                                           Down :
    1. organsystem                                                                    1. organism
    3. community                                                                       2. ecosystem
    4. population                                                                        5. cellular
    6. biosphere                                                                         8. tissue
    7. atomic                                                                              9. organ
   11. organelle                                                                        10. molecular