Across
- 2. (The process that produces glucose and oxygen from sunlight)
- 3. (The process of breaking down glucose without oxygen)
- 5. (The four letters that represent nitrogenous bases in DNA)
- 7. (A sticky substance in cigarettes that stains teeth and causes cancer)
- 11. (A cell organelle responsible for energy production during cellular respiration)
- 12. (Disease caused by fatty deposits in the arteries)
Down
- 1. (Genetic trait where neither allele is dominant, and both are expressed equally)
- 4. (A gas exhaled by organisms after respiration)
- 6. (The cycle where carbon dioxide is fixed during photosynthesis)
- 8. (The organ system affected by smoking and secondhand smoke)
- 9. (Pigment that absorbs sunlight for photosynthesis)
- 10. (Term for species no longer in existence)
- 13. (A chemical element necessary for aerobic respiration)