Across
- 2. Process by which plants prepare their own food using sunlight
- 3. Process of removing metabolic wastes from the body
- 5. Process of taking in oxygen and giving out carbon dioxide
- 6. The green pigment involved in photosynthesis
- 7. The organ where digestion begins
- 8. Tiny air sacs in lungs where gas exchange occurs
Down
- 1. The fluid that carries nutrients and oxygen in animals
- 3. Process by which food is broken down into simpler forms
- 4. Organ that pumps blood throughout the body
- 7. The system responsible for transporting food and nutrients in plants