Across
- 3. - Adenosine triphosphate, the primary energy carrier in cells.
- 6. - A biological catalyst that speeds up chemical reactions in living organisms.
- 8. - Single-celled microorganisms that can be beneficial or harmful.
- 11. - A specialized subunit within a cell that has a specific function.
- 13. - The process of cell division that results in two genetically identical daughter cells.
- 14. - The process by which cells break down glucose to release energy.
- 16. - A segment of DNA that codes for a specific trait.
- 19. - The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
- 20. - Ribonucleic acid, a molecule that plays a crucial role in the synthesis of proteins.
Down
- 1. - The variety of life in a particular habitat or ecosystem.
- 2. - A group of organisms that can interbreed and produce fertile offspring.
- 4. - Structures that have similar evolutionary origins but may serve different functions.
- 5. - The basic structural and functional unit of all living organisms.
- 7. - A change in the DNA sequence that can lead to variations in traits.
- 9. - A community of living organisms interacting with each other and their environment.
- 10. - The organelle in plant cells where photosynthesis takes place.
- 12. - Deoxyribonucleic acid, the hereditary material in humans and almost all other organisms.
- 15. - An essential element for the formation of proteins and nucleic acids in living organisms.
- 17. - The process of gradual change in a species over time.
- 18. - The study of the relationships between living organisms and their environment.