Biology Vocabulary 1

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Across
  1. 2. a group of similar cells working together to do the same job
  2. 4. a membrane covered structure with all the elements necessary for life
  3. 6. organs working to do similar jobs
  4. 9. thin layer that protects the cell by controlling what goes in and out; homeostasis
  5. 10. animal that hunts and eats other animals
  6. 12. structures that help the cell live, grow and reproduce
  7. 13. the diffusion of water across a membrane
  8. 14. place where an organism lives
  9. 15. all populations that live in a certain place
  10. 16. cell organelle in plants that makes energy (food) by photosynthesis
  11. 19. last community in succession
  12. 20. process where plants make food for energy
  13. 23. conditions in the environment that put limits on where an organism can live
  14. 26. two or more tissues working together to do a job
  15. 27. organism that makes its own food
  16. 28. way of showing how energy moves through a food chain
  17. 30. organisms that break down the wastes or remains of other organisms
  18. 32. the molecule that provides energy for cell processes
  19. 33. way of showing how food chains are related
  20. 34. organism's role or job in its environment
Down
  1. 1. a membrane covered organelle that contains the cell DNA
  2. 3. animal that eats only dead organisms
  3. 5. cells that do NOT have a nucleus
  4. 7. organelles that hook amino acids together to make proteins
  5. 8. organisms that obtain food by eating other organisms
  6. 9. largest amount of a population that can be supported by an area
  7. 11. organelle that makes energy (the ATP) for cell processes
  8. 17. trait of a living thing that helps it live in its environment
  9. 18. a living thing that can carry out life processes on its own
  10. 21. cells that DO have a nucleus
  11. 22. gradual change in organisms that occurs when the environment changes
  12. 24. a chain of organisms in which each link feeds on the one ahead and is eaten by the one behind
  13. 25. animal that is hunted or caught for food
  14. 29. group of the same kind of organism living in a certain place
  15. 30. the movement of particles from where its crowded to where it is not crowded
  16. 31. jelly-like material that holds the organelles in place