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