Across
- 3. group that exploit the resources in the same way
- 5. relationship between species where one is harmed and one unaffected
- 8. livestock and cattle egrets
- 9. lion, wolf, coyote
Down
- 1. humans and plants
- 2. the variety of life in a particular habitat
- 4. organisms which break down dead organic materials
- 6. worms in the intestines of the host
- 7. process of reciprocal evolutionary evolutionary change between two species
- 8. plants that compete for nitrogen in roots