biology

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Across
  1. 2. nonliving particle that infects host cells
  2. 5. different form of a gene
  3. 9. segment of DNA that codes for a trait
  4. 10. cell division for growth and repair
  5. 12. protein that speeds up chemical reactions
  6. 13. organism that eats other organisms
  7. 16. diffusion of water across a membrane
  8. 17. organelle that makes proteins
  9. 18. change in a species over time
  10. 19. organelle for photosynthesis
  11. 21. trait that improves survival
  12. 23. community of organisms and their environment
  13. 24. process that converts sunlight into chemical energy
  14. 25. unicellular prokaryotes
Down
  1. 1. process where the best‑adapted survive and reproduce
  2. 3. basic unit of life
  3. 4. site of cellular respiration
  4. 6. organelle that stores DNA
  5. 7. organism that breaks down dead matter
  6. 8. movement of molecules from high to low concentration
  7. 11. molecule that carries genetic information
  8. 14. cell division that produces gametes
  9. 15. main energy molecule of the cell
  10. 20. maintaining internal balance
  11. 22. organism that makes its own food