Biology Crossword puzzle

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Across
  1. 2. the brain of a cell
  2. 5. two parents are required to reproduce
  3. 6. stores water salts and proteins
  4. 8. humans choosing what animals reproduce with each other
  5. 10. one organism needed to reproduce
  6. 11. breaks down food
  7. 13. organism that are made of more than one cell
  8. 15. Eats animals
  9. 17. a living thing
  10. 18. a organelle where photosynthesis occurs found in plant cells.
  11. 19. building block of life
  12. 20. when a organism changes something about itself to have better chance of survival
Down
  1. 1. does have a nucleus
  2. 3. protects the organs in your body
  3. 4. carries genetic materials from the parent
  4. 7. Plants cells have it but Animal cells don’t
  5. 9. makes its own food
  6. 12. organs inside of cells that have functions to them
  7. 14. a single celled organism
  8. 16. does not have a nucleus