Across
- 2. Organism that depends on others for food
- 7. Enzyme that digests proteins in stomach
- 10. Movement of substances in body
- 11. Process of obtaining and utilizing food by organisms
- 12. Enzyme that breaks down starch into sugar
Down
- 1. Fluid connective tissue transporting materials
- 3. Tube that carries food from mouth to stomach
- 4. Pigment in blood that carries oxygen
- 5. Organ where protein digestion begins
- 6. Tiny air sacs for gas exchange in lungs
- 8. Organism that makes its own food using sunlight
- 9. Wave-like movement pushing food in alimentary canal