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Across
  1. 3. A branching diagram showing evolutionary relationships
  2. 5. Thread-like structures of nucleic acids and protein carrying genetic information
  3. 7. A type of white blood cell
  4. 9. A distinct group of organisms capable of interbreeding
  5. 12. A group of similar cells performing a specific function
  6. 14. The study of lakes and ponds
Down
  1. 1. The process by which plants make their own food
  2. 2. The process of cell division
  3. 4. A segment of DNA that codes for a specific trait
  4. 6. A type of lipid
  5. 7. A type of enzyme that breaks down lipids
  6. 8. The maintenance of a stable internal environment
  7. 10. The sum of all chemical processes in a living organism
  8. 11. The process of taking in and using food
  9. 12. The movement of substances across a cell membrane
  10. 13. A complex carbohydrate