5th grade Science Final Review, Unit 2: Organisms and Ecosystems

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Across
  1. 1. a struggle between two or more organisms for a limited resource
  2. 5. changes in an organism that make it better able to live in a particular place or situation
  3. 6. rotting
  4. 9. dying out
  5. 12. tiny pores that allow gases to move in and out of a plant
  6. 16. developed for a specific purpose
  7. 20. an organism that makes its own food
  8. 21. an animal that kills and eats other animals
  9. 22. an organism that relies on other plants and animals for food
  10. 23. having no tissues to carry water or nutrients
  11. 24. a group or system of interconnected things
  12. 25. having tissues that are able to transport water and nutrients
  13. 26. an organism that breaks down dead plant and animal matter
  14. 28. chain a series of organisms in which each member feeds on the one below it
  15. 29. a green pigment in plants that absorbs sunlight
  16. 31. a strong effect
  17. 32. an animal that eats both plants and other animals
Down
  1. 2. the passage of water vapor through a plant's pores
  2. 3. the waste that comes out of an earthworm's body
  3. 4. an organism that can only be seen under a microscope
  4. 7. to change in form
  5. 8. the natural home of an animal plant or other organism
  6. 10. cells that contain chlorophyll and convert sunlight into energy
  7. 11. web a network of interconnected food chains
  8. 12. to provide what is needed to exist or continue
  9. 13. an animal that eats only plants
  10. 14. the part played by a person or thing in bringing about a result
  11. 15. an animal hunted or caught for food by another animal
  12. 17. to take in or soak up
  13. 18. a group of organisms and the environment in which they live
  14. 19. the kind of food that an organism regularly eats
  15. 27. the process by which plants use sunlight carbon dioxide and water to create food
  16. 29. an animal that eats other animals
  17. 30. the fat of sea mammals