Across
- 4. the building block of all living things
- 5. a plant growing where it is not wanted
- 6. the first level of classification
- 7. able to be seen with the naked eye
- 9. made of many cells
- 15. an organism that live on or in another organism called a host
- 16. a skeleton inside the body
- 17. made of only one cell
- 19. the 6th division of the classification of living things
- 20. single cells that grow into a new moss plant, fern or fungus
Down
- 1. can only be seen with the help of a microscopic
- 2. key a key with two choices at each stage
- 3. The last level of classification of living things
- 8. the process of putting things in to group
- 10. a skeleton inside the body
- 11. animals with scales covering their body
- 12. a scientist who specialises in grouping and naming things
- 13. animals with radial symmetry, one body opening and stinging cells
- 14. animals with back bones
- 18. the 3rd division of the classification of living things