Biology Final Project

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Across
  1. 2. so small it can only be seen with a microscope
  2. 6. to eject material like a volcano
  3. 8. of great value
  4. 10. cause to pass from one place to another
  5. 14. able to be used for a practical purpose
  6. 16. able to adjust to new conditions
  7. 18. of, on, or relating to Earth
  8. 21. resistance to change
  9. 22. be full of or swarming with
  10. 23. to get smaller or more compact
  11. 24. not exact or accurate; estimated
  12. 25. a person who offers to do a task
Down
  1. 1. required; not voluntary
  2. 3. a split in the surface of something
  3. 4. a nerve cell
  4. 5. animals that begin life in the water before growing into a terrestrial adult
  5. 7. denoting an animal that migrates
  6. 9. existing in or caused by nature
  7. 11. the central part of something
  8. 12. a unit apart or by itself; cause to be apart
  9. 13. the bones that make up a backbone
  10. 15. a chemical substance released by an animal that affects the behavior of others of its species
  11. 17. a thin barrier
  12. 19. designed for people to live in
  13. 20. very small