Across
- 2. The organ where gas exchange occurs in mammals.
- 3. The organ system responsible for transporting blood throughout the body.
- 6. The main structural component of the cell wall in plants.
- 9. The study of heredity and the variation of inherited characteristics.
- 11. The process by which plants make their own food using sunlight.
Down
- 1. The green pigment found in plants that absorbs light energy for photosynthesis.
- 4. The basic unit of life.
- 5. The process by which cells break down glucose to produce energy.
- 7. The powerhouse of the cell.
- 8. A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus.
- 10. The molecule that carries genetic information.
- 12. A type of protein that speeds up chemical reactions in the body.