Ecosystems

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. The wide part of a river where it nears the sea (7)
  2. 8. Staying steady without falling over (7)
  3. 9. Noticeable heterogeneity (9)
  4. 10. The experience of being alive (6)
  5. 11. The type of environment in which an organism or group normally lives or occurs (7)
  6. 12. A system formed by the interaction of a community of organisms with their physical environment (9)
  7. 13. An organism that makes its own food, usually using sunlight. (8)
  8. 14. A group of people having a religion, ethnic, profession (9)
  9. 15. The prevailing psychological state (7)
  10. 16. The quality or attribute of being firm and steadfast (9)

Down

  1. 1. Not endowed with life (9)
  2. 3. Coins collectively (plural) (7)
  3. 4. An imaginary line around the Earth forming the great circle that is equidistant from the north (7)
  4. 5. The taste experience when common salt is taken into the mouth (8)
  5. 6. A taxonomic category consisting of members of a species that differ from others of the same species (7)
  6. 7. Available source of wealth (plural) (9)