Across
- 4. last level of classification
- 7. What lungs do inside the body
- 9. 6th level of classification
- 10. 4th level of classification
Down
- 1. Another word for birds
- 2. 5th level of classification
- 3. 3rd level of classification
- 4. The way we know whats going on around us
- 5. First level of classification
- 6. Acronym about living creatures
- 8. 2nd level of classification
- 9. The way living things become bigger and stronger