Biology

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Across
  1. 1. - The natural environment of an organism.
  2. 4. - A trait that helps an organism survive in its environment.
  3. 7. - A community of living organisms and their environment.
  4. 8. - A protein that speeds up chemical reactions.
  5. 11. - The process by which plants make their own food using sunlight.
  6. 14. - A change in the DNA sequence.
  7. 16. - Single-celled organisms without a nucleus.
  8. 17. - The movement of water across a semi-permeable membrane.
  9. 18. - The genetic makeup of an organism.
  10. 19. - The molecule that carries genetic information.
  11. 20. - The basic unit of life.
  12. 21. - A nerve cell that transmits signals.
  13. 23. - The process of releasing energy from food.
Down
  1. 2. - A protein that helps fight infections.
  2. 3. - A segment of DNA that codes for a protein.
  3. 5. - The process of maintaining a stable internal environment.
  4. 6. - Organisms like mushrooms and molds that decompose organic matter.
  5. 9. - The process by which species change over time.
  6. 10. - The part of a plant cell where photosynthesis happens.
  7. 11. - A molecule made of amino acids, essential for life functions.
  8. 12. - Known as the powerhouse of the cell.
  9. 13. - A large ecological area with specific plants and animals.
  10. 15. - The part of a cell that contains genetic material.
  11. 22. - A microscopic agent that infects living organisms.