Across
- 4. How much border a habitat has
- 5. Home of a species
- 6. Protective physical structure
- 7. Living organisms of the same kind
- 9. Natural process of change
- 11. Role in a habitat
- 12. Group of interacting living species
- 13. species with narrow niche
Down
- 1. Pieces habitat is broken into
- 2. Strip that connects two habitats
- 3. Habitat to return to previous state
- 4. Interaction of living species
- 8. Needs water, food, oxygen
- 9. How closely species can be crowded
- 10. Maximum population