Across
- 4. non living things in the environment
- 5. all living things and non living things surrounded by organisms
- 10. the role of an organism in its ecosystem
- 11. a group of organisms or one species
- 12. food water shelter and space for an organism
Down
- 1. all living things and non living things in the environment
- 2. a place where an organism lives
- 3. the struggle for organisms in an environment
- 6. number of different species in an ecosystem
- 7. more than one population in a group
- 8. all living things
- 9. living things in the environment