8th Grade Crossword #2

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Across
  1. 4. cells with no nucleus or other membrane-bound structures
  2. 7. organic compounds must have ________ and hydrogen
  3. 8. an organism that can create its own food, usually through photosynthesis
  4. 10. ______ systems are collections of structures that work together to keep a body alive
  5. 11. _______ transport requires energy to move things across a cell membrane
  6. 12. how the body keeps itself in equilibrium and maintains a constant internal environment
  7. 17. scientist responsible for finally disproving spontaneous generation
  8. 18. positively charged particle within the atom's nucleus
Down
  1. 1. cells with a nucleus and membrane-bound organelles
  2. 2. process used by a cell to create energy without using oxygen
  3. 3. the cell ________ regulates what enters and exits the cell
  4. 5. Cell Theory scientist who said that all cells come from other cells
  5. 6. to grow, an organism will _________ the number of cells in its body
  6. 9. scientist who proved that flies do not come from rotting meat
  7. 13. negatively charged particle moving around an atom's nucleus
  8. 14. Cell Theory scientist who said that all plants are made of cells
  9. 15. Cell Theory scientist who said that all animals are made of cells
  10. 16. particle within the atom's nucleus with no charge
  11. 17. _________ transport does not require energy to move things across a cell membrane