Across
- 3. The study of living organisms.
- 6. the removal of solid waste from the digestive system out of the body.
- 9. This system deals with food.
- 10. the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
- 11. The protein rich cell that carries blood cells along.
- 12. the gas that we breathe.
Down
- 1. This system includes the blood vessels.
- 2. Clusters of tiny air sacs in the lungs.
- 4. A type of tissue that circulates through all parts of our bodies.
- 5. The tiny cells that help in blood clotting.
- 7. The taking in of nutrients.
- 8. This system allows us to breathe air.