biology

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Across
  1. 2. the basic unit of life
  2. 7. groups of individuals of the same species that live in the same area
  3. 8. a living thing
  4. 10. any of the distinct types of material of which animals or plants are made
  5. 11. a group of atoms bonded together
  6. 12. (many cells) like humans
  7. 13. part of the Earth in which life exists including land, water, air and atmosphere
Down
  1. 1. place
  2. 3. groups of ecosystems that have the same climate and similar dominant communities
  3. 4. in a defined area
  4. 5. (only one cell or single-celled) like bacteria
  5. 6. groups of different populations that live
  6. 9. reason for reaction
  7. 14. kidneys,heart,stomach
  8. 15. groups of all the organisms that live in a