7th grade semester exam/Hudson Dobrovolny

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Across
  1. 4. important needs for survival such as food, water, air, and shelter.
  2. 7. the surrounding area where organisms live.
  3. 9. contains chlorophyll and makes food from sunlight.(plant cell only)
  4. 12. any biotic or abiotic factors in a environment that restricts population growth.
  5. 15. to change from one form to another
Down
  1. 1. a distant group of animals or plants that have common characters and can be bread with each other.
  2. 2. a non living part of a ecosystem.
  3. 3. any living thing
  4. 5. the role that a animal or plant species plays with the environment
  5. 6. two or more atoms joined together chemically
  6. 8. a living or once living or once living part of an ecosystem.
  7. 10. all of the living and nonliving things that interact with with a area.
  8. 11. large communities on earth with similar climates and organisms.
  9. 13. a simple sugar which is a important energy source in living organisms.
  10. 14. long chain of molecules containing genetic information.