Across
- 2. Digestion first starts at this part of the body
- 4. Nostril hair will help to trap and prevent this from entering the respiratory system
- 6. System that gives the body a structure and its shape
- 9. Process by which food is broken down into simpler substances for absorption
Down
- 1. Take in water and allows the plant to grip firmly to the soil
- 3. Small tubes that connects to the air sacs
- 5. Found on the underside of leaves for gaseous exchange
- 7. Water is removed from undigested food in which intestine
- 8. Largest percentage of gas in the air composition
- 10. Oxygenated blood contains a high amount of this gas