Biology

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Across
  1. 2. Group of similar cells working together.
  2. 4. A trait that helps an organism survive in its environment.
  3. 6. A change in DNA sequence.
  4. 7. Type of cell division for growth and repair.
  5. 9. Protein that speeds up chemical reactions.
  6. 13. A segment of DNA that codes for a trait.
  7. 14. A group of organisms that can reproduce together.
  8. 16. Gas produced by plants during photosynthesis.
  9. 18. Natural environment where an organism lives.
  10. 20. The basic unit of life.
  11. 21. Preserved remains of ancient organisms.
Down
  1. 1. Movement of particles from high to low concentration.
  2. 3. A tiny particle that can only reproduce inside a host cell.
  3. 5. Process plants use to make food using sunlight.
  4. 8. Any living thing.
  5. 10. The powerhouse of the cell
  6. 11. Substance used to protect against disease.
  7. 12. Green pigment used in photosynthesis.
  8. 15. Made from amino acids, essential for structure and function in cells.
  9. 17. Organelle that controls the cell and stores DNA.
  10. 19. The main energy-carrying molecule in cells.